Cevaplar

2012-10-29T16:58:01+02:00

xkare -2x -1 = 0

 

xkare -2x = 1

 

x.xkare + a.x+b = 0

 

1 + a + b = 0

 

a + b = 1

 

0
En İyi Cevap!
2012-10-29T17:00:52+02:00

x2=2x+1

2x+1)x+ax+b=2x2+x+ax+b

2.(x+1)+x+ax+b=0

2x+2+x+ax+b=0

3x+2+ax+b=0

ax+b=-3x-2

a:-3

b=-2

a+b= (-3)+(-2)=(-5)

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