Answer
The answer is below.
Work Step by Step
First, you would want to simplify the $\sqrt{4}$ to 2. Then, you would want to multiply the numerator and the denominator by $\sqrt{12} - \sqrt{8}$. This would leave $2\sqrt{96}$in the denominator. Then, you would want to multiply the numerator and the denominator by $\sqrt{96}$ to get the rational out the denominator. Fianlly, simplify all remaining radicals to their most reduced forms.