1. ( 1 + y )^2 - 2x^2( 1 + y^2 ) + x^4( 1 - y )^2
2. abcx^2 + ( a^2b^2 + c^2 )x + abc
3. ( ax + by + ay )^2 + ( bx - ay )( ax + by + ay )+( ay - bx )^2
因式分解,只有三題！請各位湧躍進來-20點！！
2010-08-27 5:49 am
回答 (2)
2010-08-27 7:14 am
✔ 最佳答案
=============================================================圖片參考：http://img821.imageshack.us/img821/8476/24747715.png
2010-08-26 23:15:02 補充：
http://img821.imageshack.us/img821/8476/24747715.png
2010-08-27 7:18 am
清楚明白的解答！！！
收錄日期: 2021-04-23 23:24:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100826000051KK01996