(3x^2+1/2y-2/3y^2)(-1/2xy)^3
问题描述:
(3x^2+1/2y-2/3y^2)(-1/2xy)^3
答
原式=(3x^2+1/2y-2/3y^2)(-1/8x^3y^3)
=-3/8x^5y^3-1/16x^3y^4+1/12x^3y^5