Question

3√-108×3√686 is equal to​

Answer 1

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Answer 2

Answer:

$\sqrt[3]{ - 108} \times \sqrt[3]{686 = - 3 \times 2 \times \frac{2}{3} } \times 7 \times 2 \times \frac{1}{3} \\ \\ = - 21 \times 2 \times \frac{2}{3} \times 2 \times \frac{1}{3} \\ = - 21 \times 2 \times \frac{2}{3 } + \frac{1}{3} \\ \\ = - 21 \times 2 \\ = - 42$