Maths!!!

2008-11-23 9:52 pm
Factorize the followings!!!
1. y^2 - 14y + 48

回答 (3)

2008-11-23 9:57 pm
✔ 最佳答案
By cross method,
y  -8
y  -6

y^2 - 14y + 48
=(y-8)(y-6)

2008-11-23 14:29:04 補充:
NOTE:以中三既水準,逢親見到d identity做唔到晒數,用cross method做就得。

2008-11-29 13:06:25 補充:
我答先喎-_-
參考: 自己
2008-11-23 10:02 pm
用計算機得出
y=8 或 y=6

所以
y^2 - 14y + 48
=(y-8)(y-6)
參考: 會考數學拿c既人~
2008-11-23 9:59 pm
y2 - 14y + 48
=(y-6)(y-8)
By Cross-method
y -6
y -8
------
-8y -6y =-14y


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