因式分解(x2-y2)(x+y)-(x-y)?-查字典问答网
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  因式分解(x2-y2)(x+y)-(x-y)?

  因式分解(x2-y2)(x+y)-(x-y)?

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2020-06-1317:02
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陈四军

  (x2-y2)(x+y)-(x-y)

  =(x+y)(x-y)(x+y)-(x-y)

  =(x-y)[(x+y)^2-1]

  =(x-y)(x+y+1)(x+y-1)

2020-06-13 17:06:13
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