Exercice 2 Factoriser les expressions suivantes. A = -(3x + 5) + (3x-8) (3x + 5) B = 1002²-81- (10x +9) (2x - 10) C=1002²-36 Exercice 3 Factoriser les expressions suivantes. A = (-3x+3)² - 1 B=(91-7) (-10x+1)+(-10x+10) (-10x+1) C=4²-36-(2x+6) (-3r-9) D = 81 - (5x-1)² E = (8x-3) (-7x-7)+(-7x-7)² F = -(62-10) (-6z+10)+(-6r+10) (x - 10) D = 49 z² - 36 E = (10 x-7) - (10-6) (10г-7) F=(-2x-10)² + (-2r-10) (9-4)​