Question

How do you simplify `(2/5)^-2` and write it using only positive exponents?

Answer 1

`(5/2)^2`

Explanation:

You can change a negative exponent to a positive exponent by getting the reciprocal of the base.

`a^b=1/a^-b`

This can also be reversed.

`a^-b=1/a^b`