Factorize x2 - y2 + 2x +1
thanks a lot
f4 maths
2008-08-05 6:49 am
回答 (1)
2008-08-05 7:03 am
✔ 最佳答案
x2 - y2 + 2x +1 = x2 + 2x +1- y2
=(x+1)2- y2
=(x+1-y)(x+1+y)
收錄日期: 2021-04-25 17:21:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080804000051KK03468