(2xy）²·（-3x+2xy-4)计算
问题描述：
(2xy）²·（-3x+2xy-4)计算
答
(2xy）²·（-3x+2xy-4)
=4*x^2*y^2*(-3x+2xy-4)
=-12x^3y^2+8x^3y^3-16*x^2*y^2
答
(2xy）²·（-3x+2xy-4)
=4x²y²·（-3x+2xy-4)
=-12x³y²+8x³y³-16x²y²