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Пікірлер: 7
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You got nine 3^x's on the LHS and one 3^x on the RHS. That becomes (8)(3^x) = 72. 3^x = 9. x = 2
*x=2* In my head ❤
3^(x+2)-3^x=72 x=2
I got log 9 divided by log 3, which also turns out to be 2.
.x=log7/log3