中一數學題
回答 (2)
2008-11-18 12:02 am
✔ 最佳答案
a²+b² - a²b²= a²(1-b²)+b² -1+1
= a²(1-b²)-(1-b²)+1
= (1-b²)(a²-1)+1
= (1-b)(1+b)(a+1)(a-1)+1
2008-11-18 12:57 am
a2次方十b2次方一a2次方xb2次方
=a2次方十b2次方一ab4次方
=ab4次方一ab4次方
=0
=a2次方十b2次方一ab4次方
=ab4次方一ab4次方
=0
收錄日期: 2021-04-20 23:12:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081117000051KK00773