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Obifa
@Obifa
May 2019
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Bonsoir, j'ai besoin d'aide s'il vous plait ;)
C'est sur les expressions
A) = 3x + 5
B) = 5(3 - x)
C) = 3x(6 - 2x)
D) = -4x(-5x + 5)
Combien valent ces expressions pour x = 2 ?
Combien valent-elles aussi pour x = -3 ?
Merci en avance à ceux qui m'aideront
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rosiemuller2000
Verified answer
Coucou je t ai mis mes calculs en photo
voila j espere t avoir aider
2 votes
Thanks 0
Obifa
Merci beaucoup!
rosiemuller2000
de rien ;)
AK2612
Pour x=2
A)3×2+5=6+5=11
B)5 (3-x)=5 (3-2)=5 (1)=5
c)3x (6-2x)=3×2 (6-2×2)=6 (6-4)=6 (2)=12
D)-4x (-5x+5)=-4×2 (-5×2+5)=-8 (-10+5)=-8(-5)=-40
1 votes
Thanks 0
Obifa
Merci à toi
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Bonjour, pouvez vous m'aider svp Quel est le plus grand diviseur commun de 54 et de 300 entre 3, 6 et 2 ? Merci
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Verified answer
Coucou je t ai mis mes calculs en photovoila j espere t avoir aider
A)3×2+5=6+5=11
B)5 (3-x)=5 (3-2)=5 (1)=5
c)3x (6-2x)=3×2 (6-2×2)=6 (6-4)=6 (2)=12
D)-4x (-5x+5)=-4×2 (-5×2+5)=-8 (-10+5)=-8(-5)=-40