61x^2+24x-15 = 0
x=?
解二次方程
2007-12-08 6:25 am
回答 (1)
2007-12-08 6:47 am
收錄日期: 2021-04-25 17:17:00
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071207000051KK03893