Factorize.
a^3+b^3-a^2b-ab^2
F.3 Maths factorize!
2011-07-30 8:54 am
回答 (1)
2011-07-30 10:36 am
✔ 最佳答案
a^3+b^3 -a^2b -ab^2a^3-a^2b +b^3 -ab^2
a^2(a – b) – (ab^2 – b^3)
a^2(a – b) – b^2(a – b)
(a^2 – b^2) (a - b)
(a- b)(a + b) (a - b)
(a - b)(a – b) (a + b)
(a - b)^2 (a + b)
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110730000051KK00070