负整数指数幂运算 (2m^2n^-2)^2*3m^-3n^3

问题描述:

负整数指数幂运算 (2m^2n^-2)^2*3m^-3n^3

(2m^2n^-2)^2*3m^(-3)n^3
=4m^4n^(-4)*3m^(-3)n^3
=12m^(4-3)n^(-4+3)
=12mn^(-1)
=12m/n