Question

How to simplify the following and express with positive index ? : (27^-3/9^-3)^1/5

`(27^-3/9^-3)^(1/5)`

Answer 1

`(1/3)^(3/5)`

Explanation:

`(27^-3/9^-3)^(1/5)=(9^3/27^3)^(1/5)=(9/27)^(3xx(1/5)`

`=(1/3)^(3/5)`