Question
Solve for $x : \frac{\log 81}{\log 9}= x$
✓
Answer
$\frac{\log 81}{\log 9}=x$
$\Rightarrow \frac{\log 3^4}{\log 3^2}=x$
$\Rightarrow \frac{4 \log 3}{2 \log 3}=x$
$\Rightarrow x=2$
$\Rightarrow \frac{\log 3^4}{\log 3^2}=x$
$\Rightarrow \frac{4 \log 3}{2 \log 3}=x$
$\Rightarrow x=2$
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