Question

simplify√72+√800-√162

Answer 1

Root 72 + root 800 - root 162
= 6 root 2 + 20 root 2 - 9 root 2
=26 root 2 - 9 root 2
=17 root 2

Answer 2

6
$6 \sqrt{2} + 20 \sqrt{2} - 9 \sqrt{2}$
= (6+20 -9)√2
=17√2