Question 266903
How would I simplify this expression with a positive exponant? 
(a^2 b^3)(a^-1 b)^4 =

(a^2*b^3)*[a^(-1*4)]*[b(1*4)] =
(a^2*b^3)*a^(-4)*b^4 =
a^(2-4)*b^(3+4) =
a^(-2)*b^7 =
b^7/a^2