Cevaplar

2012-11-28T16:19:34+02:00

a)(x+1).(x+3)=x2+3x+x+3=x2+4x+3                  (x2     x in karesi demek)

 

b)(3x-2).(x+2)=3x2+6x-2x-4=3x2+4x-4

 

c)(x+4).(2x+1)=2x2+x+8x+4=2x2+9x+4

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