(a^2/a^-1)*)a^0*b^2)/(ab^-1)

问题描述:

(a^2/a^-1)*)a^0*b^2)/(ab^-1)

a^2/a^-1=a^3 a^0*b^2=b^2 ab^-1=a/b 原式就等于a^3*b^2/(a/b)=a^2b^3