已知(a+2)^2+(3b-3)^2=0求3a^2-[2ab^2-6(ab-2分之1a^2b)-2ab的值

问题描述:

已知(a+2)^2+(3b-3)^2=0求3a^2-[2ab^2-6(ab-2分之1a^2b)-2ab的值