Exercice 2 Factoriser les expressions suivantes. A = -(3x + 5) + (3x-8)(3x+5) B = 1002²-81-(10z+9) (2x - 10) C=100²-36 Exercice 3 Factoriser les expressions suivantes. A = (-3x+3)² - 1 B=(91-7)(-10x+1)+(-10x+10) (-101+1) C=4x²-36-(2x+6) (-31-9) D=81-(5z-1)² E=(82-3) (-72-7)+(-71-7)² F=-(61-10) (-6x +10) + (-6z+10) (z-10) D=491²-36 E = (10r-7) -(10x-6) (10x-7) F = (-2x-10)2 + (-2r-10) (9-4)
