Question

Resolva a equação exponencial 2^-3x-5 = 16

Answer 1

$2^{-3x-5}=16$

$2^{-3x-5}=2^4$

Bases iguais, iguala os expoentes.

-3x - 5 = 4

-3x = 4 + 5

-3x = 9

x = 9/-3

x = -3