Respuesta :

[ a⁵ (a²b³)⁵ ] / [ a²b⁻² ]

[ a⁵ (a¹⁰b¹⁵) ] / [ a²b⁻² ]

[ a⁵⁰ b⁷⁵ ] / [ a²b⁻² ]

I think this: a⁴⁸b⁷⁷ is the answer.

Hope this helps :)