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唔該呀....
Math 一問....
2008-03-22 5:12 am
回答 (1)
2008-03-22 5:40 am
✔ 最佳答案
(a)x^2-3x-2=0
x+5+x^2-4x-7=0
y=-x^2+4x+7
y=x+5
The quadratic equation is -x^2+4x+7
(b)
x^2-3x-2=0
(x^2/3)-x-(2/3)=0
(x^2/6)-(x/2)-(1/3)=0
(x^2/6)-(x/2)+(3/2)-(11/6)=0
(x^2/6)-(x/2)+(3/2)-(11/6)=0
y=-(x/2)+(3/2)
y=-(x^2/6)+(11/6)
The quadratic equation is -(x^2/6)+(11/6)
收錄日期: 2021-04-25 17:20:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080321000051KK02966