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Axelrommel26
@Axelrommel26
May 2019
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Calculer l'expression pour les valeurs indiquées de la variable.
B= 4 - a - (11 - a) + 3 - 5*a a = - 5
Svp c'est urgent le Dm est pour demain
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MAHAM
BONSOIR
pour a=-5
B= 4 - a - (11 - a) + 3 - 5a
B(-5)= 4-(-5)-(11-(-5))+3-5(-5)
= 4+5-(11+5)+3+25
=9-16+28
=20
1 votes
Thanks 0
axelrommel26
Pourquoi la calculatrice me dit -35
axelrommel26
c'est (11-(-5)
MAHAM
-21
MAHAM
le reultat c'est 21 au lieu de 20
mohayati2006
B= 4 - a - (11 - a) + 3 - 5*a
=4-a-11+a+3-5a
=4-11+3-a+a-5a
=-7+3-5a
=-4-5a
pour
a = - 5
B=-4-5(-5)
B=-4+25
B=21
0 votes
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pour a=-5
B= 4 - a - (11 - a) + 3 - 5a
B(-5)= 4-(-5)-(11-(-5))+3-5(-5)
= 4+5-(11+5)+3+25
=9-16+28
=20
=4-a-11+a+3-5a
=4-11+3-a+a-5a
=-7+3-5a
=-4-5a
pour
a = - 5
B=-4-5(-5)
B=-4+25
B=21