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Bonjour, de l'aide svp
A=35-[4x(5+2)-7]
B=12x[32-(4+7)x2]
C=(1+7)x[11-(2+3)]
D= 12+[(120-20)-2x4x5]
Merci :)


Répondre :

les reponses a tes exos
a 14
b 120
c 48
d 72
Bonjour,

A = 35-[4×(5+2)-7]
= 35-(4×7-7)
= 35-(28-7)
= 35-21
= 14
B = 12×[32-(4+7)×2]
= 12×(32-11×2)
= 12×(32-22)
= 12×10
= 120
C = (1+7)×[11-(2+3)]
= (1+7)×(11-5)
= 8×(11-5)
= 8×6
= 48
D = 12+[(120-20)-2×4×5]
= 12+(100-2×4×5)
= 12+(100-8×5)
= 12+(100-40)
= 12+60
= 72

Bonne journée :)