Sagot :
exercice 2 :
3(5x-6) = 15x - 18
-5( 12x + 6) = -60x -30
5x(3x+11) = 15xau carré + 55x
-2x(5x -3 ) = -10x au carré + 6x
Exercice 1 :
3(5x-6)=15x-18
-5(12x+6)=-60x-30
5x(3x+11)=15x au carré+55x
-2x(5x-3)=-10x au carré+6x
3(5x-6)=15x-18
-5(12x+6)=-60x-30
5x(3x+11)=15x au carré+55x
-2x(5x-3)=-10x au carré+6x