Question

Determine as raízes a seguir
$3 \sqrt{27}$

$5 \sqrt{32}$
$- \sqrt{64}$

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Answer 1

A) $3 \sqrt{27} \\ 3 \sqrt{ {3}^{2} \times 3 } \\ 3 \sqrt{ {3}^{2} } \sqrt{3}$

$3 \times 3 \sqrt{3} \\ 9 \sqrt{3}$

B) $5 \sqrt{32} \\ 5 \sqrt{ {4}^{2} \times 2} \\ 5 \sqrt{ {4}^{2} } \sqrt{2}$

$5 \times 4 \sqrt{2} \\ 20 \sqrt{2}$

C) $- \sqrt{64} \\ - \sqrt{ {8}^{2} } \\ - 8$