1. x^4 - 2( a^2 + b^2 )x^2 + ( a^2 - b^2 )^2
2. [( x^2 + y^2 )( a^2 + b^2 ) + 4abxy ]^2 - 4[ xy( a^2 + b^2 ) + ab ( x^2 + y^2 )]^2
因式分解,只有兩題！請各位湧躍進來-20點！！
2010-08-27 5:47 am
回答 (2)
2010-08-27 6:33 am
✔ 最佳答案
===========================================================圖片參考：http://img838.imageshack.us/img838/7756/14202164.png
2010-08-26 22:33:54 補充：
http://img838.imageshack.us/img838/7756/14202164.png
2010-08-27 7:14 am
知識長，thank you very much.
收錄日期: 2021-04-23 23:23:45
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100826000051KK01993