Sagot :
Réponse :
Explications étape par étape :
A = 17- (2x + 3)
A = 17 -2x -3
A = -2x + 14
B = -4x+(6-3x)
B = -4x + 6 -3x
B = -7x + 6
C = 5(2x + 4)- (10-3x)
C = 10 x + 20 - 10 + 3x
C = +13x +10
D = (2x - 3)-(5x+7)
D = 2x - 3 -5x -7
D = -3x -10
E = x-8-(2 + 4x - (9-5x))
E = x-8-(9x-7)
E = x-8-9x+7
E = -8x-1
Bonsoir,
Développer:
a. 17- (2x + 3)= 17-2x-3= -2x+14
b.-4x+(6-3x)= - 4x+6-3x= -7x+6
c. 5(2x + 4)-(10-3x)= 10x+20-10+3x= 13x+10
d. (2x - 3)-(5x+7)= 2x-3-5x-7= -3x-10
e.x-8-(2 + 4x - (9-5x))= x-8-(2+4x-9+5x)= x-8-(9x-7)= x-8-9x+7= -8x-1