Question

2XELEVADO A MENOS2 =18 ELEVADO A MENO 1

Answer 1

Bom Dia
$2x^{-2} = 18^{-1}$
$\frac{2}{ x^{2} } = \frac{1}{18}$
$\frac{ x^{2}}{2} =18$
$x^{2} =2*18$
$x^{2} =36$
$x= \sqrt{36}$
x'=6
x"= -6

Answer 2

Bom dia

2x^(-2) = 18^(-1) 

2/x^2 = 1/18
x^2/2 = 18
x^2 = 36

x1 = 6
x2 = -6