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Nonofofo25
@Nonofofo25
May 2019
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Calculer les expressions algébriques suivantes en détaillant les calculs :
A : -2 x [-3-(-2)]
B : 25 : (-0,5-2)
C : (-50) x (-0,0158) x 25 x (-4 ) x 2
D : [3,5-(-2)] : (-7-4)
Voila j'espère que vous pourrez m'aider avant la semaine prochaine !!!
Merci d'avance
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gsantha
Verified answer
Bonjour
A = -2 x (-3 - (-2))
= -2 x (-3 + 2)
= -2 x (-1)
= 2
B = 25 / (-0.5 - 2)
= 25 / (-2.5)
= -10
C = (-50) x (-0.0158) x 25 x (-4) x 2
= 0.79 x (-100) x 2
= 1.58 x (-100)
= -158
D = (3.5 - (-2)) / (-7 - 4)
= (3.5 + 2) / (-11)
= 5.5/(-11)
= -0.5
Voilà j'espère avoir pu t'aider ^^
2 votes
Thanks 1
nonofofo25
Oui merci bcp
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Lista de comentários
Verified answer
BonjourA = -2 x (-3 - (-2))
= -2 x (-3 + 2)
= -2 x (-1)
= 2
B = 25 / (-0.5 - 2)
= 25 / (-2.5)
= -10
C = (-50) x (-0.0158) x 25 x (-4) x 2
= 0.79 x (-100) x 2
= 1.58 x (-100)
= -158
D = (3.5 - (-2)) / (-7 - 4)
= (3.5 + 2) / (-11)
= 5.5/(-11)
= -0.5
Voilà j'espère avoir pu t'aider ^^