作业帮2x²+xy-y²-4x+5y-6 因式分解,
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/08 09:15:17
x)3PS64֮ԭ0uM*M+u^tOӎ$铠ZΆjUVjjThWjd0$*إ!ڍ!b0T~^]Td&Q@.~qAb 4Dl J}t
2x²+xy-y²-4x+5y-6 因式分解,
2x²+xy-y²-4x+5y-6 因式分解,
2x²+xy-y²-4x+5y-6 因式分解,
2x²+xy-y²-4x+5y-6
=(2x-y)(x+y)-4x+5y-6
=(2x-y)(x+y)+2x+2y-6x+3y-6
=(2x-y)(x+y)+2(x+y)-3(2x-y)-6
=［(2x-y)(x+y)+2(x+y)］-［3(2x-y)+6］
=(2x-y+2)(x+y)-3(2x-y+2)
=(2x-y+2)(x+y-3)
2x²+xy-y²-4x+5y-6
=(2x-y)(x+y)-4x+5y-6
=(2x-y+2)(x+y-3)