Question

5√ 18+7√ 50-30√ 2 упростить

Answer 1

$5sqrt{18}+7sqrt{50}-30sqrt{2}=5sqrt{9*2}+7sqrt{25*2}-30sqrt{2}= \ \=5*3sqrt{2}+7*5sqrt{2}-30sqrt{2}=15sqrt{2}+35sqrt{2}-30sqrt{2}= \ \=20sqrt{2}$

Answer 2

получается 15√2+35√2 -30√2=20√2