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21 votes
21 votes
If
$4^x = 3$, what is
$4^(2x-2)?$

User Ha Hoang
by
2.6k points

1 Answer

14 votes
14 votes


4^x=3 \\\\[-0.35em] ~\dotfill\\\\ 4^(2x-2)\implies 4^(2x)\cdot 4^(-2)\implies (4^x)^2\cdot \cfrac{1}{4^2}\implies \cfrac{(4^x)^2}{16}\implies \cfrac{(3)^2}{16}\implies \cfrac{9}{16}

User Arttronics
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