Question

resolva a equação exponencial 4 elevado a x = 8

Answer 1

4=2^2 e 8 = 2^3

(2^2)^x =2^3

2^2x = 2^3

Logo
2x=3

X=3/2

Answer 2

Transforme o 4 e o 8 para base 2.

$4^x=8\\\\(2^2)^x=2^3\\\\2^{2x}=2^3~~~~\Rightarrow~~2x=3~~~~\Rightarrow~~\boxed{x= \frac{3}{2} }$