Question

raiz de 18 + 3 com raiz de 50 + raiz de 98

Answer 1

√18=3√2
√50=5√2
√98=7√2
3√2+3*5√2+7√2=
3√2+15√2+7√2=25√2

Answer 2

$\sqrt{18} + 3\sqrt{50} + \sqrt{98} \\ \\ \sqrt{2*3^2} + 3 \sqrt{2*5^2} + \sqrt{2*7^2} \\ \\ 3\sqrt{2} + 5 * 3 \sqrt{2} + 7\sqrt{2} \\ \\ 3\sqrt{2} + 15\sqrt{2} + 7\sqrt{2} \\ \\ 3\sqrt{2} + 22\sqrt{2} \\ \\ \\ => 25 \sqrt{2}$