Question

qual e a raiz quadrada de 196

Answer 1

Resposta correta: 14

Answer 2

Resposta:

$\sqrt{196} =\textbf{14},\:pois\:14\:\cdotp14=196$

Explicação passo-a-passo:

$\sqrt{196} =\\\\196\arrowvert2\\98\:\:\arrowvert2\\49\:\:\arrowvert7\\7\:\:\:\:\arrowvert7\\1\:\:\:\:\boxed{2^{2} \cdotp7^{2} }$

$\sqrt[\diagup\!\!]{2^{\diagup\!\!\!\!2}\cdotp7^{\diagup\!\!\!\!2}} =\\2\cdotp7=\\\boxed{14}$