我都有野ｎｇ識ａｒ～！

１.Solve 4x-20x+25=0
２.Solve(2x-3)-1=0
３.By using quadratic formula,solve x-2x-1=0 (to 2 d.p.)
４.If 4x+3x+k=0 has no real roots,find the range of k
５.If 2x+kx+(k-2)=0 has equal root,find the value of k
６.If the product of two consecutive even number 168,find the two numbers
７.（a）Solve x+x-12=0
７.（b）If the area of the triangle is 6cm,find the value of x
８.If X+kx+m=0 has equal roots
　Find the discriminant in terms of kamd m

引用:

Originally posted by ＊°雲尼斯杜萊 at 2005-10-1 04:08 PM:
我都有野ｎｇ識ａｒ～！

１.Solve 4x-20x+25=0
２.Solve(2x-3)-1=0
３.By using quadratic formula,solve x-2x-1=0 (to 2 d.p.)
４.If 4x+3x+k=0 has no real roots,find the range of k
５.If 2x+kx+(k-2 ...

math定咩黎ga??

引用:

Originally posted by because at 2005-10-1 04:12 PM:


math定咩黎ga??

係ａ～！

ｍａｔｈｓ　黎ｇａ～！

引用:

Originally posted by ＊°雲尼斯杜萊 at 2005-10-1 04:13 PM:


係ａ～！

ｍａｔｈｓ　黎ｇａ～！

睇落去咁難既＝－＝．．．．．．．．．．．．．

引用:

Originally posted by ＊°雲尼斯杜萊 at 2005-10-1 04:08 PM:
我都有野ｎｇ識ａｒ～！

１.Solve 4x-20x+25=0
２.Solve(2x-3)-1=0
３.By using quadratic formula,solve x-2x-1=0 (to 2 d.p.)
４.If 4x+3x+k=0 has no real roots,find the range of k
５.If 2x+kx+(k-2 ...

呢個都ng知岩ng岩ga...錯左ng好怪我....(你話1-3識...甘我ng打la...)

５.If 2x+kx+(k-2)=0 has equal root,find the value of k

2x+kx+(k-2)=0
3+ 1.5 k + k-2=0 (proved in (2))<..括號果d可以ng寫...
1-2.5k=0
2.5k = -1
k=-1/2.5
  =-0.4....

ng知岩ng岩ga

7(a)

x+x-12=0
2x-12=0
2x=12
x=6...

[ Last edited by because on 0505-10-1 at 04:31 PM ]

你打中文我先識

引用:

Originally posted by because at 2005-10-1 03:55 PM:
哈哈．．．．我有野ｎｇ識．．．＝＝”
ＩＳ．．．
We need energy from food to do activities, to keep our bodies _________________ and to _______________.

f2既....= ="
用既書係Living Scienc ...

我好想答你,但我只係識中文的IS

引用:

Originally posted by 小邱子 at 2005-10-1 05:35 PM:

我好想答你,但我只係識中文的IS

ｏ．．．甘算ｌｏｗ．．．．