(x+y)²(x-y)+(x+y)(x-y)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/02 03:37:19
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
=(x+y)(x-y)(x+y+x-y)
=(x+y)(x-y)*2x
=2x*(x+y)(x-y)
。。。
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/02 03:37:19
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
(x+y)²(x-y)+(x+y)(x-y)²
=(x+y)(x-y)(x+y+x-y)
=(x+y)(x-y)*2x
=2x*(x+y)(x-y)
。。。