Answer
$\frac{5\sqrt x(2\sqrt x-\sqrt y)}{4x-y}$
Work Step by Step
Multiply $\frac{2\sqrt x-\sqrt y}{2\sqrt x-\sqrt y}$ to the expression, we have:
$\frac{5\sqrt x}{2\sqrt x+\sqrt y}\cdot \frac{2\sqrt x-\sqrt y}{2\sqrt x-\sqrt y}=\frac{5\sqrt x(2\sqrt x-\sqrt y)}{4x-y}$