A = (2x+5)(2x-7)
A = 4x²-14x+10x-35
A = 4x²-4x-35
B = (2x-1)²-36
B = 4x²-4x+1-36
B = 4x²-4x-35
C = ((1/3) -3x)((3/2)x -5)
C = (3/6)x -(5/3) - (9/2)x² + 15x
C = -(9/2)x² +(31/2)x -(5/3)
D=-4 (3x+5)-(3x-5)+4x+3
D=-12x-20-3x+5+4x+3
D=-11x-12
Pour x = -2.5
A = 4(-2.5)²-4(-2.5)-35
A = 25 + 10 - 35
A = 0
FIN
