Question

cine ma paote ajuta ?
$\sqrt{18}$ - $3 \sqrt{50}$ + $\sqrt{98}$

Answer 1

√18-3√50+√98=
√9×2-3√25×2+√49×2=
3√2-3×5√2+7√2= -5√2

Answer 2

3√2 - 3 · 5√2 + 7√2 =
3√2 - 15√2 + 7√2 =
10√2 - 15√2 = - 5√2