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【提取公因式】(x+y)^2(x-y)+(x+y)(x-y)^2
人气:362 ℃ 时间:2020-02-05 10:20:31
解答
(x+y)^2(x-y)+(x+y)(x-y)^2
=(x+y)(x-y)[(x+y)+(x-y)]
=2x(x+y)(x-y)
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