Question

$log4 = 2 \\ (x - 1)$
​

Answer 1

Resposta:

S = { 3 , -1 }

Explicação passo-a-passo:

$\boxed{log_{x - 1}^4 = 2}$

$\boxed{(x - 1)^2 = 4}$

$\boxed{x^2 - 2x - 3 = 0}$

$\boxed{\boxed{x' = 3}}$

$\boxed{\boxed{x'' = -1}}$