Calculer l'expressions A = (-7 + 4) x 5 + 11 B = [4 + (-2) x 5] x 3 C = 3 x [18 - (4 - 1) x 2 ]

A=(-7+4)x5+11=(-3)x5+11=-15+11=-4

B=[4+(-2)x5]x3=(4-10)x3=(-6)x3=-18

C=3x[18-(4-1)x2]=3x(18-3x2)=3x12=36

A = (-7 + 4) x 5 + 11
A = - 3 x 5 + 11
A = - 15 - 11
A = - 4

B = [4 + (-2) x 5] x 3
B = (4 - 10) x 3
B = - 6 x 3
B = - 18

C = 3 x [18 - (4 - 1) x 2 ]
C = 3 x (18 - 3 x 2)
C = 3 x (18 - 6)
C = 3 x 12
C = 36