Answer
The solution set is $\left\{-\sqrt5, \sqrt5\right\}$.
Work Step by Step
Add $5$ to both sides to obtain:
$x^2 = 5$
Take the square root of both sides to obtain:
$x = \pm \sqrt{5}$
Thus, the solution set is $\left\{-\sqrt5, \sqrt5\right\}$.
