Réponse :
A = x*x + 4x + x + 4
A = x*x + 5x + 4.
B = 4x - x + 4 - x
B = 2x + 4.
C = 4x + x*x - 4 - x
C = 3x + x*x -4.
D = x*x - 4x - x + 4
D = x*x - 3x + 4
A = x*x + 2x
B = 5x*x + 15x
C = 6x*x - 10x
D = 3x - 12x*x
E = 6
F = 8x*x + 10x - 3
G = 30 - 28y + 6y*y
J'ai pas assez de temps pour le terminer
