ax^2 +bx+c=0
roots are α and β
α+β : αβ=2:3
proof : 6b^2 =25ac
a math 問題
2007-01-01 12:08 am
回答 (1)
2007-01-01 1:05 am
✔ 最佳答案
a u sure your question is correct?i've found the following similar question, proof the same thing but with different assumption
http://hk.knowledge.yahoo.com/question/?qid=7006100800822
收錄日期: 2021-04-13 15:53:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061231000051KK02714