Question

$\sqrt{ } \frac{25 {a}^{2} }{49}$
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10 Pontos​

Answer 1

Resposta:

Explicação passo-a-passo:

Fatorar:

25|5

5|5

1|

25=5.5=5²

49|7

7|7

1

49=7.7=7²

$\displaystyle \sqrt{\frac{25a^2}{49} } =\sqrt{\frac{5^2.a^2}{7^2} } =\frac{5^{\frac{2}{2} }.a^{\frac{2}{2} }}{7^{\frac{2}{2}} } =\frac{5a}{7}$