解:原式=ab+2ab^2-3a^2b-6ab^2+2a^2b=(-3+2)a^2b+(2-6)ab^2+ab=-a^2b-4ab^2+ab=ab(-a-4b+1)=2013/2014*(-1)(-2013/2014+4+1)=-2013/2014*8057/2014额...不科学啊