Question

equação exponencial 4x=1/2

Answer 1

${4}^{x } = \frac{1}{2} \\ {4}^{x} = {2}^{ - 1 } \\ ( { {2}^{2} })^{x} = {2}^{ - 1} \\ {2}^{2x} = {2}^{ - 1}$
Cancela as bases
$2x = - 1 \\ x = \frac{ - 1}{2}$

Answer 2

4= 2²

1/2 = 2^{-1}

4ˣ = 1/2

(2²)ˣ = 2^{-1} → Corta as bases e iguale os expoentes.

2x = -1

 x= -1/2 → Resposta:)