Been there, done that!
Would you mind posting your solution? Someone else might get something out of it.
Feel hopeless for not being able to solve this question.
Find the value of a/(b^3*c^2) in index form if a = (2/5)^4, b = (-1/3)^3 and c = (3/5)^2
EDIT: Don't worry I got it, feel like an idiot for looking at it too hard :/
Night study in a nutshell eh?