(32/p)^2/5*p^7/5/p^-3
(32/p)^2 / 5p^7 / 5/p^-3 = 1024/25p^12
1) (32/p)^2=1024/p^2
2) 5/p^-3=5p^3
3) (1024/p^2) / (5p^7) = (1024/p^2) * (1/5p^7) = 1024/5p^9
4) (1024/5p^9) / 5p^3 = (1024/5p^9) * (1/5p^3) = 1024/25p^12