1.(5m^3n^2)^2*(-2m^2)^3*(-n^3)^4=?2.(π-3)^0+(-0.125)^2011*8^20113.(2a^m-3b^n)(3a^n+5b^m)

问题描述:

1.(5m^3n^2)^2*(-2m^2)^3*(-n^3)^4=?
2.(π-3)^0+(-0.125)^2011*8^2011
3.(2a^m-3b^n)(3a^n+5b^m)