Question

What is the cube root of 216x^9 ?

Answer 1

3

√

−

216

x

9

Rewrite

−

216

x

9

as

(

−

6

x

3

)

3

.

3

√

(

−

6

x

3

)

3

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

−

6

x

3

Explanation:

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