# How do you simplify 2sqrt216+6sqrt150?

$\sqrt{216} = \sqrt{{6}^{2} \cdot 6} = 6 \sqrt{6}$
$\sqrt{150} = \sqrt{{5}^{2} \cdot 6} = 5 \sqrt{6}$
$2 \sqrt{216} + 6 \sqrt{150}$
$= 2 \left(6\right) \sqrt{6} + 6 \left(5\right) \sqrt{6}$
$= 42 \sqrt{6}$