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P(x)=x kare + 3x-2

Q(x)= x kare + (2a-3)x + b kare -1  polinomu veriliyor..P(x+2)=Q(x) olduğuna göre a-b=?

 

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MaTeMaTiKkrans

P(x+2)=(x+2) kare + 3(x+2)-2=Q(x)= x kare + (2a-3)x + b kare -1 

             x kare+2x+4+3x+6-2=x kare+2ax-3x+b kare-1

                                    5x+8=x(2a-3)+b kare-1

                                        2a-3=5      b kare-1=8

                                           a=4            b=-3  v  b=+3

                                          a-b=4-(-3)=7   v    a-b=4-3=1

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