Bonsoir :
Exercice : 2
A = 3(6 - 7) - 9/36
A = 3(-1) - 9/36
A = -3 - 9/36
A = -12/36
A = -1/3
B = 4² - 4×3/5 - 7×2
B = 16 - 12/5 - 14
B = 4/-9
B = -4/9
C = 12 + 3(4 - 7)²/30
C = 12 + 3(-3)²/30
C = 12 + 3(9)/30
C = 12 + 27/30
C = 39/30
C = 13/10
J’espère t'avoir t'aider