Answer
$\left\{-\sqrt3, \sqrt3\right\}$
Work Step by Step
Divide $5$ on both sides of the equation to obtain:
$x^2=3$
Take the square root of both sides to obtain:
$x = \pm \sqrt{3}$
Thus, the solution set of the given equation is $\left\{-\sqrt3, \sqrt3\right\}$.
