EXPONENTIAL EQUATION.
Solving exponential equation using a K method.
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Looks like a U substitution. U=3^X and so U^2 -4U +3=0. (U-3)(U-1)=0. Therefore 3^X=3, X=1, and 3^X=1, X=0.
X={1,0} In my head ❤
X=0. etX=1.
3^x=3; x=1 3^x=1 ; x=0