Question

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$a \sqrt[4]{7936} \\ b \sqrt[5]{18711}$

Answer 1

A)

$4 \sqrt{7936} \\ 4 \sqrt{ {16}^{2} \times 31} \\ 4 \sqrt{ {16}^{2} \sqrt{31} } \\ 4 \times 16 \sqrt{31} \\ 64 \sqrt{31}$

B)

$5 \sqrt{18711} \\ 5 \sqrt{ {9}^{2} } \times 231 \\ 5 \sqrt{ {9}^{2} \sqrt{231} } \\ 5 \times 9 \sqrt{231} \\ 45 \sqrt{231}$