Question

a raiz de 2 x 7 elevado a 3​

Answer 1

Resposta:

$\sqrt{2 \times {7}^{3} } = \sqrt{2 \times {7}^{2} \times 7} = \\ \sqrt{ {7}^{2} } \times \sqrt{2 \times 7} = 7 \sqrt{14}$