Question

calcule a raiz quadrada da some de 5² com 12².Ele é igual à raiz quadrada de (5 + 12)²?

Answer 1

$\sqrt{ 5^{2}+12^{2} } = \sqrt{(5+12)^{2}}$
$\sqrt{25+144}= \sqrt{5^{2} +2*5*12+12^{2}}$
$\sqrt{169} = \sqrt{25+120+144}$
$\sqrt{169} = \sqrt{289}$
$13=17$   $===\ \textgreater \ FALSO$