x2-(a+b)xy+aby2 x2+4xy-5y2 x2-5x+3 2x2+xy-y2-4x+5y-6
问题描述:
x2-(a+b)xy+aby2 x2+4xy-5y2 x2-5x+3 2x2+xy-y2-4x+5y-6
答
(x+ay+ax^2+3x+2)(x+by+by^2+2y-3)
x2-(a+b)xy+aby2 x2+4xy-5y2 x2-5x+3 2x2+xy-y2-4x+5y-6
(x+ay+ax^2+3x+2)(x+by+by^2+2y-3)