Question

log 2(2x2+2) =3 !!!!!!!!!!!!!!!!!​

Answer 1

Resposta:

$log_{2}(2 {x}^{2} + 2) = 3 \\ 2 {x}^{2} + 2 = {2}^{3} \\ 2 {x}^{2} + 2 = 8 \\ 2 {x}^{2} = 8 - 2 \\ 2 {x}^{2} = 6 \\ {x}^{2} = \frac{6}{2} \\ {x}^{2} = 3 \\ x = \pm \sqrt{3}$