Answer
The solution set is $\left\{-\sqrt6, \sqrt6\right\}$.
Work Step by Step
Add $6$ to both sides to obtain:
$x^2 = 6$
Take the square root of both sides to obtain:
$x = \pm \sqrt{6}$
Thus, the solution set is $\left\{-\sqrt6, \sqrt6\right\}$.
