Simplify cube root of -64y^9

$\sqrt[3]{- 64 y^{9}}$

Step 1

Rewrite $- 64 y^{9}$ as ${(- 4 y^{3})}^{3}$ .

$\sqrt[3]{{(- 4 y^{3})}^{3}}$

Step 2

Pull terms out from under the radical, assuming real numbers.

$- 4 y^{3}$

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