Question

(1/3)^-x+2= raiz quarta de 9

Answer 1

Temos a equação

$\dfrac{1}{3}^{-x+2}=\sqrt[4]{9}\\\\3^{x-2}=3^{\frac{2}{4}}\\\\x-2=\dfrac{1}{2}\Rightarrow x= \dfrac{5}{2}$