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Obifa
@Obifa
May 2019
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Re bonsoir, j'ai besoin d'aide sur les expressions.
Exercice :
Quelle est l'expression qui a la plus grande valeur numérique pour x = 3 ?
A = x² + 3x - 6
B = -5x² - x + 2
C = (3x-2) (4 - x)
Merci d'avance ;)
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maudmarine
Verified answer
Bonjour,
Quelle est l'expression qui a la plus grande valeur numérique pour x = 3
?
A = x² + 3x - 6
A = 3² + 3 * 3 - 6
A = 9 + 9 - 6
A = 18 - 6
A = 12
B = -5x² - x + 2
B = - 5 * (3)² - 3 + 2
B = - 5 * 9 - 3 + 2
B = - 45 - 3 + 2
B = - 48 + 2
B = - 46
C = (3x-2) (4 - x)
C = (3 * 3 - 2) (4 - 3)
C = (9 - 2) (1)
C = 7 * 1
C = 7
12 > 7 > - 46
L'expression qui a la plus grande valeur numérique pour x = 3 est A
1 votes
Thanks 0
Obifa
Merci beaucoup! :)
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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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Bonjour,Quelle est l'expression qui a la plus grande valeur numérique pour x = 3 ?
A = x² + 3x - 6
A = 3² + 3 * 3 - 6
A = 9 + 9 - 6
A = 18 - 6
A = 12
B = -5x² - x + 2
B = - 5 * (3)² - 3 + 2
B = - 5 * 9 - 3 + 2
B = - 45 - 3 + 2
B = - 48 + 2
B = - 46
C = (3x-2) (4 - x)
C = (3 * 3 - 2) (4 - 3)
C = (9 - 2) (1)
C = 7 * 1
C = 7
12 > 7 > - 46
L'expression qui a la plus grande valeur numérique pour x = 3 est A