Question

$\sqrt{18} - \sqrt{50}+ \sqrt{200} = ?$

Answer 1

√18-√50-√200
=3√2-5√2-10√2
= -12√2

Answer 2

$\sqrt{18}- \sqrt{50}+ \sqrt{200}=$
$3 \sqrt{2} -5 \sqrt{2} +10 \sqrt{2} = \\ -2 \sqrt{2} +10 \sqrt{2}=\\ -12 \sqrt{2}$