Question

9√2-√98 решитеипж прошу

Answer 1

(9* корень 2-корень 98)2=81*2-98=162-98=64=8

Answer 2

$\sqrt{98}$ =$\sqrt{7*7*2}$ = $7 \sqrt{2}$

$9\sqrt{2}$ -$7 \sqrt{2}$ =$2\sqrt{2}$ =$\sqrt{8}$

Удачи!!!!