(x^2-y^2)+2x-2y
更新1:
要步驟啊(:!
F.2 Factorization! (20點!)
回答 (2)
2009-11-01 10:50 pm
✔ 最佳答案
(x^2-y^2)+2x-2y =(x^2-y^2)+(2x-2y)
= (x - y)(x + y) + 2(x - y)
= (x - y)(x + y + 2)
2009-11-02 12:02 am
(x^2-y^2)+2x-2y =(x^2-y^2)+(2x-2y) =(x-y)(x+y)+2(x-y) =(x-y)(x+y+2)
參考: ......................................................................
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https://hk.answers.yahoo.com/question/index?qid=20091101000051KK00922