Réponses

2013-05-11T12:16:42+02:00

a=x^2 + 3x + 2x + 6

a=x^2 + 5x +6

 

b=3x^2-2x-21x+14

b=3x^2 -23x +14

 

c=3 -x + 6x -2x^2

c=-2x^2 +5x +3