2x^2 + 9│x│-5+0
ans:-1/2 or 1/2
解釋一下...
a maths...急!!!!!!!
2007-12-02 7:34 am
回答 (1)
2007-12-02 7:45 am
✔ 最佳答案
As follows~~~圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn02Dec012345.jpg?t=1196523936
參考: Myself~~~
收錄日期: 2021-04-14 01:02:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071201000051KK04728