Question

Simplify the radical expression.

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

Answer 1

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.