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Sagot :

KIRUA26

Réponse:

1. a ) 2×-2 = -4

b) 7+ 5×-2 = 7+-10 = - 3

c) - 2² = 4

d) -(-2)² = -4

e) -2³ = -8

f) 4 - (-2) = 4+2 = 6

3. a) 4 (10-4,5) = 40 - 18 = 22

b) 4 (10- (-3)) = 4 (10+3) = 40+12 = 52

c) 4 (10- ⅔) = 40 - 8/3

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