## Algebra 1: Common Core (15th Edition)

$\frac{3\sqrt 7+3\sqrt 3}{4}$
$\frac{3}{\sqrt 7-\sqrt 3}$ Multiply the equation with $\frac{\sqrt 7+\sqrt 3}{\sqrt 7+\sqrt 3}$ $=\frac{3(\sqrt 7+\sqrt 3)}{7-3}$ $=\frac{3\sqrt 7+3\sqrt 3}{4}$