# How do you evaluate 2 square root of 3 + 3 square root of 5 - 4 square root of 5?

$2 \sqrt{3} + 3 \sqrt{5} - 4 \sqrt{5}$
$= 2 \sqrt{3} + \left(3 - 4\right) \sqrt{5} = 2 \sqrt{3} - \sqrt{5}$