Question

HURRY ITS TIMED what is the cube root of -729a^9b^6

A. -9a^3b^2
B. -9a^2b^3
C. -8a^3b^2
D. -8a^2b^3

Answer 1

`\sqrt[3]{ - 729 {a}^(9) {b}^(6) } = \sqrt[3]{ - 729} \sqrt[3]{ {a}^(9) } \sqrt[3]{ {b}^(6) } = - 9 {a}^(3) {b}^(2)`

The correct answer is A.