Question

Log5 (x-1)^2 = 2 ???​

Answer 1

Resposta:

S = {-3, 6}

Explicação passo a passo:

$log_5(x-1)^2=2\\\\C.E : x - 1 \neq0\\\\x\neq1\\\\(x-1)\² =5\²\\\\(x-1)\²=25\\\\x-1= 5\implies x=6~~ou\\\\x-1=-4\impliesx=-3$