(a + b)^2(a-b)-(a + b)(a-b)^2
以上因式分解--
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2009-10-25 7:44 am
回答 (1)
2009-10-25 7:57 am
✔ 最佳答案
(a + b)^2(a-b)-(a + b)(a-b)^2=(a+b)(a-b)(a+b) - (a+b)(a-b)(a-b)
=(a+b)(a-b)[(a+b) - (a-b)]
=2b(a+b)(a-b)
收錄日期: 2021-04-21 22:04:01
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091024000051KK01893