Réponse :
1) A = 5x+ 3
a) A = (5 x 10) + 3 = 53
b) A = (5 x -3) + 3 = -12
c) A = (5 x 3) + 3 = 18
2) B
a) B = (5 x 5) - (3 x 5) + 10 = 25 - 15 + 10 = 20
b) B = (-2 X -2) - (3 x -2) + 10 = 4 + 6 + 10 = 20
c) B = (2 x 2) - (3 x 2) + 10 = 4 - 6 + 10 = 8
3) C = -6x + 10
a) C = (-6 x 4) + 10 = -24 + 10 = -14
b) C = (-6 x5) + 10 = -30 + 10 = -20
c) C = (-6 x -5) + 10 = 30 + 10 = 40
Explications :