Réponses

2013-12-17T18:51:32+01:00
F(0)= 9*0+6*0+1-49
f(0)=-48

f(x)=9x²
f(x)=9x²+6x+1-49
f(x)=9*9x²+6*9x²+1-49
f(x)=91x²+54x²-48
f(x)=145x²-48

Voila ! :)