Simplify cube root of -216x^9

$\sqrt[3]{- 216 x^{9}}$

Step 1

Rewrite $- 216 x^{9}$ as ${(- 6 x^{3})}^{3}$ .

$\sqrt[3]{{(- 6 x^{3})}^{3}}$

Step 2

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

$- 6 x^{3}$

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