Multiplying binomials and polynomials | Algebra Basics | Khan Academy

Multiplying binomials. Created by Sal Khan.
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Algebra basics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course
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Пікірлер: 322

  • @pringlescan9174
    @pringlescan91746 жыл бұрын

    "I'm going through great pains to keep this color coded for you." 😂😂😂

  • @robertgaines2705

    @robertgaines2705

    3 жыл бұрын

    4:57

  • @vonpacilan6881

    @vonpacilan6881

    3 жыл бұрын

    @@robertgaines2705 Lol

  • @hydranoob844

    @hydranoob844

    3 жыл бұрын

    Lol @Pringles Can

  • @zensation22

    @zensation22

    2 жыл бұрын

    it sounded so passive aggressive lmaooo

  • @nocturnalvisionmusic

    @nocturnalvisionmusic

    Жыл бұрын

    @@zensation22 best response :D

  • @thomass1891
    @thomass18919 жыл бұрын

    I personally know Salman (The guy behind Khan Academy) he's a great friend and I'm happy that he is so successful in reaching out to all students around the world.

  • @alanarockia9141

    @alanarockia9141

    5 жыл бұрын

    Thomas Schmidt reeeeeaaallyyy?

  • @h7672

    @h7672

    5 жыл бұрын

    uh ok great lol

  • @iforgottoturnoffmyincognit5071

    @iforgottoturnoffmyincognit5071

    2 жыл бұрын

    Hr friend has a nice voice tho 😂😅

  • @alviyall688
    @alviyall6883 жыл бұрын

    dear all the 2 years ago and more years ago comments: youll never experience the pain of online class

  • @thegamingtron4163

    @thegamingtron4163

    3 жыл бұрын

    And that's facts

  • @Max-fn1pq

    @Max-fn1pq

    3 жыл бұрын

    Unless their college campus is shutdown 😔

  • @fatimakassim4265

    @fatimakassim4265

    3 жыл бұрын

    Ikr, this guys videos are honestly the only thing that’s been saving my grades lol 😭

  • @vonpacilan6881

    @vonpacilan6881

    3 жыл бұрын

    @@fatimakassim4265 same lol. I cant seem to focus in online class making me not understand our lesson.

  • @KaikaiDokeshii

    @KaikaiDokeshii

    3 жыл бұрын

    ikr :(

  • @sethcolburn7234
    @sethcolburn723410 жыл бұрын

    khan academy... round of applause. once again you have changed my perspective of math to a whole different meaning

  • @nii_san1201

    @nii_san1201

    6 жыл бұрын

    yes (claps)

  • @xiiyyz8978

    @xiiyyz8978

    2 жыл бұрын

    Ok

  • @Mitreme
    @Mitreme9 жыл бұрын

    It's funny, Khan Academy makes math fairly easy to understand and kinda enjoyable (sometimes lol) and yet in my class, it's pure torture and my teacher makes it so boring and horrible.

  • @GoldenHellcat

    @GoldenHellcat

    8 жыл бұрын

    lol i feel you

  • @ur-local-lesbian-comrade

    @ur-local-lesbian-comrade

    8 жыл бұрын

    same

  • @rileyswestman9693

    @rileyswestman9693

    7 жыл бұрын

    YEAH

  • @jacksonyoungblood5235

    @jacksonyoungblood5235

    7 жыл бұрын

    i know right same lol?

  • @SodaliteSushi

    @SodaliteSushi

    7 жыл бұрын

    Take notes teachers lol

  • @ineedmymoneyback3390
    @ineedmymoneyback33907 жыл бұрын

    Thank you my teacher at school literally speaks "math" and feels like im learning a new language. just glad people speak english

  • @rileyswestman9693

    @rileyswestman9693

    7 жыл бұрын

    Yeah!

  • @brownielee2449
    @brownielee24498 жыл бұрын

    Khan Academy is for when your finals is near but your teacher can't teach shit 😊

  • @-_-thuglife4755

    @-_-thuglife4755

    8 жыл бұрын

    Ya haha

  • @jesseshea9698

    @jesseshea9698

    7 жыл бұрын

    Brownie Lee @mr.hendrickse

  • @annaira3119

    @annaira3119

    6 жыл бұрын

    Exactly!

  • @BlahBlah-ep6hc

    @BlahBlah-ep6hc

    6 жыл бұрын

    Brownie Lee You know you're ready to fail the finals when you use is instead of are.

  • @jacobb.9181

    @jacobb.9181

    4 жыл бұрын

    Blah Blah but... you don’t use “are” Khan Academy is not pluralized

  • @nii_san1201
    @nii_san12016 жыл бұрын

    "I'm going thru great pains in keeping it color-coded for you, I, I think it's helping" Me: Yes buddy, it is helping..... also thanks a bunch you helped me finally learn how to do this stuff (my teacher taught us this and i wasn't listening much, so, you're a life saver bro!)

  • @ThePeterDislikeShow
    @ThePeterDislikeShow13 жыл бұрын

    "In this video I'm just going to multiply a ton of polynomials, and hopefully that will give you enough exposure to feel confident when you have to multiply any for yourself!" Nice way to start a video with some energy!

  • @jessicawilson2507

    @jessicawilson2507

    2 жыл бұрын

    You’ll never know the pain of online school

  • @dangerouslyjackson3008
    @dangerouslyjackson30089 жыл бұрын

    I referred to this site by friends. But MAN YOU GUYS ARE AMAZING. GOD BLESS YOUR EFFORTS

  • @-_-thuglife4755
    @-_-thuglife47558 жыл бұрын

    My class is boring af..i don't understand shit, But y'all really helping me thnks LOT!"Rlly Appreciate :-]

  • @DanNguyen-th5gp

    @DanNguyen-th5gp

    7 жыл бұрын

    lol "my class is boring af id understand shit"

  • @jnccg
    @jnccg5 жыл бұрын

    i wish he was my math teacher

  • @h7672

    @h7672

    5 жыл бұрын

    SAME SAME SAME

  • @kingslayer9243

    @kingslayer9243

    5 жыл бұрын

    same lol

  • @AlkyCeej
    @AlkyCeej12 жыл бұрын

    Thank you for this video, I went into one of those brain-melt scenarios where I had no idea where my left foot was, let alone what I'm doing with polynomials or any algebra whatsoever! This and a lot of your other videos save me on a regular basis

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's life

  • @bruhdealer5208

    @bruhdealer5208

    11 ай бұрын

    ​@@mrslick3366fr

  • @heyymaryam
    @heyymaryam4 жыл бұрын

    I was 3 years old when this video was published ... how nice

  • @jothehen5067

    @jothehen5067

    4 жыл бұрын

    Me too . Bro

  • @heyymaryam

    @heyymaryam

    4 жыл бұрын

    @@jothehen5067 :)

  • @jothehen5067

    @jothehen5067

    4 жыл бұрын

    @@heyymaryam :)

  • @fardos7034
    @fardos70345 жыл бұрын

    Stop reading the comments and get back to studying, and probably forget about your previous lessons

  • @jessegarcia6250
    @jessegarcia62507 жыл бұрын

    Genius

  • @sk8vids1000
    @sk8vids100010 жыл бұрын

    Thanks Kan Academy!!! I learned this but my teacher made it confusing!!! You saved my life... and my math grade :)

  • @vihaan3911

    @vihaan3911

    3 жыл бұрын

    It s khan lol🔥

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's your life now ya boi

  • @catperson776
    @catperson7764 ай бұрын

    I feel like crying you have helped me so much thank you so much for keeping Kahn Academy free 🙏

  • @produde1671
    @produde16713 жыл бұрын

    bro tysm my teacher made it so dam confusing and hard to understand but the way u taught it made it much easier for me

  • @misterunchained7065
    @misterunchained70657 жыл бұрын

    thank you so much for making this vid really helpful!

  • @pkguy52
    @pkguy528 жыл бұрын

    Wow didnt learn shit and i have a math test tomorrow Rest in pepperoni

  • @MrIamadon

    @MrIamadon

    8 жыл бұрын

    +pkguy52 know that feeling. got an test on monday and dont know a shit :P

  • @m2412

    @m2412

    8 жыл бұрын

    +pkguy52 how did your guys test go im curious

  • @pkguy52

    @pkguy52

    8 жыл бұрын

    Adon Wullschleger unfortunately i do 😂😏

  • @pkguy52

    @pkguy52

    8 жыл бұрын

    maya i got the lowest possible grade that one can pass the test with 😂😂

  • @DanNguyen-th5gp

    @DanNguyen-th5gp

    7 жыл бұрын

    rest in pepperoni?

  • @MrMonkey55556666
    @MrMonkey5555666611 жыл бұрын

    Very clear. Thank you ^^

  • @jamesmatthewilao4139
    @jamesmatthewilao41395 жыл бұрын

    Thx Khan Academy, this was a short video but it made me fully understand what the topic is, Thanks a lot again.

  • @actionjessie
    @actionjessie13 жыл бұрын

    Thank you khan academy guy! This is really helping me with my engineering mathematics stuff! Bravo for truly giving back to the world

  • @antonior1908
    @antonior19083 жыл бұрын

    many years, back in the school I left my class of math because I was so terrified of it. I did not do well in school and the worst is that I left the school completely , not body in my life care at that time,why I left the school,but I wish that At that time there was youtube where you can learn real math...Thanks again to the teacher

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's life nowadays?

  • @justmolly525
    @justmolly5253 жыл бұрын

    This is fantastic! I love these Kwan Academy videos for when I want to get my homework done before its assigned! I completely understand the material and I also have no homework now. :)

  • @jessicahorases5426
    @jessicahorases54264 жыл бұрын

    Wow,ok🔥...I’m getting the hang of it

  • @ianricafort6145
    @ianricafort61456 жыл бұрын

    Thank you khan academy. It's like me being taught by our teacher again ty :)

  • @laurenromano6587
    @laurenromano658710 жыл бұрын

    I just wanted to thank you for doing this. I'm not very good at math, actually I'm pretty horrible at math and these tutorials have been able to help me understand the concept much better. Khan Academy and it's professors are wonderful!

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's life now? Are you better at math .-.

  • @mercedesholter940
    @mercedesholter9407 жыл бұрын

    I have a final on polynomials tomorrow and this really helped!

  • @UrielVS
    @UrielVS14 жыл бұрын

    Thank you so much. I've always have had a issue with polynomials. This video solves all my issue's.

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Is all your issues still solved now?

  • @BearsFan-ut4xy
    @BearsFan-ut4xy7 жыл бұрын

    This helped me

  • @teresacarolina9832
    @teresacarolina983211 жыл бұрын

    This is so HELPFUL!

  • @gellysvision
    @gellysvision6 жыл бұрын

    my teacher himself told the class to watch khan academy top notch teaching if you ask me

  • @aloha102805
    @aloha1028053 жыл бұрын

    Who’s watching in 2020?

  • @ashleyg684

    @ashleyg684

    3 жыл бұрын

    🙋‍♀️me and I still don't understand lol

  • @jhayem4870
    @jhayem48707 жыл бұрын

    Do I need to combine like terms in the sum of the multiplied terms?

  • @RandyDaGamer
    @RandyDaGamer2 жыл бұрын

    Thank you Khan Academy 😇 My sister needs help and I need to help her so I watch either you or the Chemistry Tutor. Both great channels.

  • @maximummax4551
    @maximummax45519 жыл бұрын

    To those who think this form of math is useless, your wrong. Most elementary and middle school math courses were meant to be used in everyday life. Now, in advanced math, this is all about testing your comprehension; what you can handle without imploding yourself. It's hard, and that's the point. It gets you used to being able to maintain several objectives at the same time, a skill that is used in adulthood. Not everything is direct you math haters...

  • @Kyah-ip6bs

    @Kyah-ip6bs

    8 жыл бұрын

    *you're

  • @troy830299

    @troy830299

    8 жыл бұрын

    Please be quiet:)

  • @Kyah-ip6bs

    @Kyah-ip6bs

    8 жыл бұрын

    Troy Skinner how am I suppose to be quiet if I am not speaking ? 😊

  • @troy830299

    @troy830299

    8 жыл бұрын

    not you baby girl :)

  • @undray4131

    @undray4131

    8 жыл бұрын

    yeah, cause i need to learn algebra to be a fucking chef

  • @karmahleone1196
    @karmahleone1196 Жыл бұрын

    YOU HELPED ME GET MY GED!!!! THANK YOU SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO MUCH!

  • @johnpaulilagan5448
    @johnpaulilagan544810 жыл бұрын

    wow

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Ik right

  • @hossein1413
    @hossein141314 жыл бұрын

    WOW beautiful method at the end..never thought of that

  • @nilo413
    @nilo4133 жыл бұрын

    Very clear, thank you so much.

  • @livlyf11
    @livlyf11 Жыл бұрын

    big help! tysm :)

  • @letmesleep2389
    @letmesleep23893 жыл бұрын

    over summer i used to HATE khan academy but now that i’m in online school and my teacher doesn’t explain things it’s by best friend

  • @averageweeb2158
    @averageweeb2158 Жыл бұрын

    Bro I needed you when my teachers were terrible, but now that I have graduated from the academy I will pass this onto my brothers

  • @mistaneffery6152
    @mistaneffery615210 жыл бұрын

    Thank you for making this video!

  • @NeelyG
    @NeelyGАй бұрын

    this was made before i was born, good video...

  • @gymnast_lydia7970
    @gymnast_lydia79709 жыл бұрын

    thank youuu I get it now

  • @cRaZyBeautyyful
    @cRaZyBeautyyful10 жыл бұрын

    If it wasnt for your video I would have never past my bgcse'. Thanks a lot!

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's life now

  • @1OnTheInternet
    @1OnTheInternet4 жыл бұрын

    Most people here have bad teachers. The rest are either teaching their kids or are getting a refresher

  • @foodloverplays9912
    @foodloverplays99122 жыл бұрын

    "we're going through pains just to color-code it for you, and i think its helping" yes it is, very actually thanks for the vid!!

  • @menesiageingos9386
    @menesiageingos93864 жыл бұрын

    Thanks a lot it helped me a lot

  • @ernikat1274
    @ernikat12744 жыл бұрын

    i love this helped so much

  • @user-co6vx8qt3l
    @user-co6vx8qt3l3 жыл бұрын

    I didn’t notice that the FOIL method was just distributing :0 Thank you I have a math exam tomorrow and now that I’ve watched this video I think I might pass-

  • @arcatheone

    @arcatheone

    Жыл бұрын

    Did you pass?

  • @user-co6vx8qt3l

    @user-co6vx8qt3l

    Жыл бұрын

    @@arcatheone yep, had less than 5 mistakes from what i remember lol :)

  • @tsoy1999
    @tsoy199911 жыл бұрын

    TNX it helped me alot

  • @EliStettner
    @EliStettner3 жыл бұрын

    THIS IS A GODSEND!!!!

  • @jack9927
    @jack99274 жыл бұрын

    Thank you so much!

  • @orion5436
    @orion543610 жыл бұрын

    Thanks this helps a lot. I am taking high school courses in middle school so this is very helpful.

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Did you pass middle school?

  • @weiminyu4009
    @weiminyu40092 жыл бұрын

    Good teacher!

  • @sesaenosorez7161
    @sesaenosorez71614 жыл бұрын

    I have been living in a cave my whole life

  • @entertaineranimations
    @entertaineranimations7 ай бұрын

    thankyou so much!

  • @francescos.9940
    @francescos.99407 жыл бұрын

    you are strong !great very nice work.Thank u for all from italy!

  • @flashlightpaul1432

    @flashlightpaul1432

    3 жыл бұрын

    Francesco S. DI MOLTO

  • @elinaitugot972
    @elinaitugot97211 жыл бұрын

    Thank you so much! Especially for the technique :D (I have a test tomorrow)

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Did you pass your test?

  • @cohhiba
    @cohhiba13 жыл бұрын

    great vid thanks

  • @ruheejuv121
    @ruheejuv12110 жыл бұрын

    wow 7th grade sucked without this lol!

  • @h7672
    @h76725 жыл бұрын

    i came here crying over a math problem while going over the practice quiz homework and this helped, thanks a lot.

  • @kenkeiomura
    @kenkeiomura11 жыл бұрын

    Would it be okay to use the foil method for binomials?

  • @807louise
    @807louise11 жыл бұрын

    This video will save my life for tomorrow... waa thank you very much!

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's life now?

  • @gwappo4852
    @gwappo48524 жыл бұрын

    KHAN ACADEMY YET AGAIN SAVING MAN FROM FAILING 😭

  • @Meroe12
    @Meroe123 жыл бұрын

    So when Multiplying a trinomial why is that when you do that cross multiplacation step why do you just cut the numbers in half to cross multiply. How would you do this witha equation with a odd number

  • @Jhoov-md6dm
    @Jhoov-md6dm2 жыл бұрын

    Watching this before an algebra final and I’m not sure if I’m gonna make it

  • @zaczoe.bustamante

    @zaczoe.bustamante

    Жыл бұрын

    Did you make it?

  • @canadiancrafter5100
    @canadiancrafter51006 жыл бұрын

    Can u guys just become part of the Canadian Curriculum

  • @untitledtitle_9228
    @untitledtitle_92285 жыл бұрын

    This is better than school

  • @lemensaggerdumort
    @lemensaggerdumort14 жыл бұрын

    thanks for posting this videos!! you saved me from failing

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Did you fail?

  • @Megatr0n12
    @Megatr0n1212 жыл бұрын

    Thank you very much sir!

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Sir

  • @bisengobubasha
    @bisengobubasha4 жыл бұрын

    Thanks

  • @michilaces6038
    @michilaces603811 жыл бұрын

    you make it kinda hard for me but yeah how did you do the sec ond term

  • @ifudiscusswithmeurprobably7273
    @ifudiscusswithmeurprobably72739 жыл бұрын

    Best Tut out there so i have a problem is there a video wich explains (3 + 4x + 5x^2 + 6x^3) X (4 + 3x + 2x^2 + x^3). Thanks

  • @HiHi-cf9yi

    @HiHi-cf9yi

    5 жыл бұрын

    12+12x+10x^4+6x^6

  • @mymcr03
    @mymcr0312 жыл бұрын

    thank you

  • @yohoopyo
    @yohoopyo13 жыл бұрын

    Nice handle on the mouse VERY clear for me to read

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    How's reading now?

  • @eman_playz2229
    @eman_playz22297 жыл бұрын

    I'm in a algebra 1 class and sometimes understand but I need improvement.

  • @PikaPower131313

    @PikaPower131313

    7 жыл бұрын

    me too

  • @eman_playz2229

    @eman_playz2229

    7 жыл бұрын

    Same, :p

  • @rainbow6356
    @rainbow635610 жыл бұрын

    Am I the only one confused by this? Maybe because I've been missing class for weeks and I just am randomly going through my make up work and was never taught distributive property well enough for me to understand.

  • @skylarpayton6782

    @skylarpayton6782

    10 жыл бұрын

    i dont even know the distributive property!!! im in 8th grade and learnin this stuff. i missed 3 days of school last week, now this one freakin worksheet. and a test tomorrow and i know that i will fail! im gonna cheat and get answers to this freakin worksheet. but, it is rlly rlly confusin!

  • @MrTheshadowbird

    @MrTheshadowbird

    10 жыл бұрын

    Skylar Payton I'am in the 8th Grade aswell and i've been searching and searching for polynomials and i still dont get it. ):

  • @HI-lu2zt

    @HI-lu2zt

    9 жыл бұрын

    Skylar Payton you're in the 8th grade and you don't know distributive!?!?!

  • @nishachandra691

    @nishachandra691

    2 жыл бұрын

  • @nishachandra691

    @nishachandra691

    2 жыл бұрын

    @@HI-lu2zt I know right I learnt in 3rd grade

  • @spaceagettrpg
    @spaceagettrpg11 жыл бұрын

    this man is my superhero of math

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    Do you have a superhero in your life?

  • @spaceagettrpg

    @spaceagettrpg

    Жыл бұрын

    @@mrslick3366 I have many Superhero's in my life some fictional and some non-fictional

  • @tangerine_9627
    @tangerine_9627 Жыл бұрын

    I'm so good at math I got 95% and 97% on my math finals 😂

  • @bhavishyabarot1047
    @bhavishyabarot10474 жыл бұрын

    Iam watching this 10 years later

  • @heyymaryam

    @heyymaryam

    4 жыл бұрын

    me 2

  • @mrslick3366

    @mrslick3366

    Жыл бұрын

    14..

  • @AURELIAN-restitutororbis
    @AURELIAN-restitutororbis Жыл бұрын

    Y'ALL HOW DO YOU DO THE MULTIPLICATION TECHNIQUE AT THE END WITH VARIABLES😭😭😭

  • @baekailoverxchxxzxxa6771
    @baekailoverxchxxzxxa67717 жыл бұрын

    Thanks a lot i finally get it😅

  • @immrsmithers954

    @immrsmithers954

    7 жыл бұрын

    what happened to 1+1

  • @tttfdryiifd
    @tttfdryiifd4 жыл бұрын

    grate

  • @vidaurri59
    @vidaurri598 жыл бұрын

    how do you do this (2y-1/2)2nd power I'm confuse on this

  • @h7672

    @h7672

    5 жыл бұрын

    mathway.com and mathpapa.com help sry this is 3 yrs later but whatever lmao

  • @firstername

    @firstername

    4 жыл бұрын

    Naseem R you are the only person i see in 2019

  • @actuallyalive.1737
    @actuallyalive.17373 жыл бұрын

    Thank you for ending my suffering.

  • @brollyarroyoespada7917
    @brollyarroyoespada79176 жыл бұрын

    2x(4x-5)= 8x2 -10x so after that do i solve 8x2-10x= -2x or is my final answer just 8x2-10x???

  • @chattersbox6267
    @chattersbox62675 жыл бұрын

    If you were my math teacher, math would be my highest subject

  • @HumanBeing-db1bp
    @HumanBeing-db1bp5 жыл бұрын

    This was a great video but how would you solve something like this: 2 (x-1)(x+3)?

  • @danielbonsu1139

    @danielbonsu1139

    5 жыл бұрын

    You can multiply it anyway you want, but the recommended method is to multiply the binomials first, then multiply the result by the monomial. so (x-1)(x+3) = x^2+2x-3. then multiply the whole thing by 2, so 2*(x^2+2x-3) = 2x^2+4x-6

  • @MeowMeowzzz_
    @MeowMeowzzz_7 жыл бұрын

    thanks a scillion

  • @v12coupe
    @v12coupe10 жыл бұрын

    Khan for President

  • @peterhindes56
    @peterhindes568 жыл бұрын

    He should use hot keys for color switching if he can.

  • @Sailoryaya
    @Sailoryaya2 жыл бұрын

    How did they get step 4

  • @TheTbrewer77
    @TheTbrewer7711 жыл бұрын

    at 6:14 what do i do if the x has a number before it !? EX, (4x-3)(5x-2) Please help

  • @trinityperry4687
    @trinityperry46872 жыл бұрын

    alr bet

  • @boomba3032
    @boomba3032 Жыл бұрын

    5:30