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7 Calculer les produits suivants.
a.(-1) (-2) × (-2) x (+1) × (-3)
b.(-4) (-1) × (-1) x (+2) x (-3) (-1)
c. (+5) × (-2) x (+2) x (+5) (-1)
d.(-8) * (+2) x (+1) x (+1) × (-2) (-2) 1-2
15
aides moi plssssass

Sagot :

Réponse :

Explications étape par étape :

a= (-1) (-2) × (-2) x (+1) × (-3)

a= 2*6

a= 12

b.(-4) (-1) × (-1) x (+2) x (-3) (-1)

b= 4*(-6)

b= -24

c. (+5) × (-2) x (+2) x (+5) (-1)

c= 5*(-4)*(-5)

c= 100

d.(-8) * (+2) x (+1) x (+1) × (-2) (-2) 1-2

15

d=-16*4*-214

d=-13696