(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3.
问题描述:
(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3.
答
(4xy^2-2x^2y)-(-x^3-y^3)=x^3-2x^2y+4xy^2+y^3.
(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3.
(4xy^2-2x^2y)-(-x^3-y^3)=x^3-2x^2y+4xy^2+y^3.