求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/22 18:08:08
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)求因式分解(

求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)

求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x-y)²-2(x-y)³
=(x-y)(1-2x+2y)
(x+y)(x-y)-x(x-y)
=(x-y)(x+y-x)
=y(x-y)