# How do you simplify -2sqrt8+2sqrt2 - 3sqrt18?

$2 \sqrt{8} = 4 \sqrt{2}$
$3 \sqrt{18} = 9 \sqrt{2}$
$- 4 \sqrt{2} + 2 \sqrt{2} - 9 \sqrt{2} = - 11 \sqrt{2}$