74 Calcule les expressions suivantes. A = 3 – 4 × (5 – 2) B = 3 × 4 – 2 × (4 – 1) C = 5 – 2 × 3 + 2 × 7 D = – 3 + (1 – 5) × (– 6) E = 1 – 2 × 3 + 4 × (– 5) F =
Mathématiques
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Question
74 Calcule les expressions suivantes. A = 3 – 4 × (5 – 2) B = 3 × 4 – 2 × (4 – 1) C = 5 – 2 × 3 + 2 × 7 D = – 3 + (1 – 5) × (– 6) E = 1 – 2 × 3 + 4 × (– 5) F = 1 + (– 2)² – (– 3)²
merci besoin d'aide
merci besoin d'aide
1 Réponse
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1. Réponse mlebouedec
A = 3 - 4 x 3 = 3 - 12 = -9
B = 12 - 2 x 3 = 12 - 6 = 6
c = 5 - 6 + 14 = 13
D = -3 + 24 = 21
E = 1 - 6 - 20 = -25
F = 1 + 4 - 9 = -4