Exercice 4 Factoriser les expressions suivantes.
C= -(7x + 4)(-5x +9) + (-5x +9)2
D=16 - (3x + 7)2
E = -(6x - 4) (6x+6) - (6x+ 6)
F=36x2 – 1 + (8x +1) (6x + 1)
Exercice 5
Factoriser les expressions suivantes.
A= -(-9x + 10) (4 x – 3) - (4x - 3)
B = 64 x2 – 36
C= -(-8x+8) (6 x + 2) + (-8x+8) (9x -6)
D= (3x + 8) (-x+ 4) +9x2 – 64
E =(-7x – 9)2 – 49
F=(-9x + 1)2 + (-9x+ 1)(-5x + 7)
Exercice 6
Factoriser les expressions suivantes.
A = (-3x+6) (2x – 1) + (-5x + 1)(-3x+6)
B=(-x – 5)2 – 25
C=-(-10x + 4)(-10x - 5) + (-10 x – 5)
D=81x2- 36
E = (10x +9) (-4x - 2)+(-4x – 2)2
F=-(-10x– 4) (9x – 5) + 81 x2 – 25
C= -(7x + 4)(-5x +9) + (-5x +9)2
D=16 - (3x + 7)2
E = -(6x - 4) (6x+6) - (6x+ 6)
F=36x2 – 1 + (8x +1) (6x + 1)
Exercice 5
Factoriser les expressions suivantes.
A= -(-9x + 10) (4 x – 3) - (4x - 3)
B = 64 x2 – 36
C= -(-8x+8) (6 x + 2) + (-8x+8) (9x -6)
D= (3x + 8) (-x+ 4) +9x2 – 64
E =(-7x – 9)2 – 49
F=(-9x + 1)2 + (-9x+ 1)(-5x + 7)
Exercice 6
Factoriser les expressions suivantes.
A = (-3x+6) (2x – 1) + (-5x + 1)(-3x+6)
B=(-x – 5)2 – 25
C=-(-10x + 4)(-10x - 5) + (-10 x – 5)
D=81x2- 36
E = (10x +9) (-4x - 2)+(-4x – 2)2
F=-(-10x– 4) (9x – 5) + 81 x2 – 25