Question

How do you rewrite `((5a)/(3b))^-2` using a positive exponent?

Answer 1

Have a look:

Explanation:

You can think that changing the sign of your exponent is like taking a lift:
if you are at the ground floor (denominator) you go to the first (numerator) and viceversa.

In your case:
`((5a)/(3b))^-2=(color(red)((3b)/(5a)))^(color(blue)(+)2)`