Question

$sqrt{7} *7^2^x= frac{1}{7}$

Answer 1

$sqrt{7} * 7^{2x} = frac{1}{7}$
$7^{1/2} * 7^{2x} = {7}^{-1}$
$7^{2x} = {7}^{-3/2}$
$2x =-3/2$
$x =-3/4$

Answer 2

спасибо большое