计算题,(-2分之3xy)·(3分之2xy-4xy^2+3分之4y)
问题描述:
计算题,(-2分之3xy)·(3分之2xy-4xy^2+3分之4y)
答
(-2分之3xy)·(3分之2xy-4xy^2+3分之4y)
=-3/2xy*2/3xy+3/2xy*4xy^3-3/2xy*4/3y
=-x^2y^2+6x^2y^4-2x^2y