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Simplify the radical expression.

\sqrt[3]{-64a^(3) }

1 Answer

8 votes

Answer:

Explanation:

factor - 64 : -4 * -4 * -4

factor a^3: a * a * a

Cube root (-64*a^3) =

Cube root (-4*-4*-4 * a * a * a)

Answer: -4 * a

Reason. You are taking the cube root of a number. For every number under the root sign, number by 3 equal factors. Take one outside the root sign. Throw the other two away.

User Amitai Fensterheim
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