Answer
$x=0$
Work Step by Step
The given equation is
$\Rightarrow -3x^2-5=-5$
Add $5$ to each side.
$\Rightarrow -3x^2-5+5=-5+5$
Simplify.
$\Rightarrow -3x^2=0$
Divide each side by $-3$.
$\Rightarrow \frac{-3x^2}{-3}=\frac{0}{-3}$
Simplify.
$\Rightarrow x^2=0$
Take the square root of each side.
$\Rightarrow x=\pm\sqrt {0}$
Simplify.
$\Rightarrow x=0$
Hence, the solution is $x=0$.
