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Vamosmonponey
@Vamosmonponey
May 2019
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Bjr j'ai besoin d'aide très vite! C'est Pour dans 1/4 d'heure!!!!!
Soit l'expression A=16-4x²-(4+2x)(3-4x)
Calculer cette expression pour x=-1/2
MERCI DAVANCE!!
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loulakar
Verified answer
Bonjour
Enoncé :
Soit l'expression A=16-4x²-(4+2x)(3-4x)
Calculer cette expression pour x=-1/2
Réponse :
A = 16 - 4 * (-1/2)² - (4 + 2 * (-1/2))(3 - 4 * (-1/2))
A = 16 - 4 * 1/4 - (4 - 1)(3 + 2)
A = 16 - 1 - 3 * 5
A = 16 - 1 - 15
A = 16 - 16
A = 0
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Verified answer
BonjourEnoncé :
Soit l'expression A=16-4x²-(4+2x)(3-4x)
Calculer cette expression pour x=-1/2
Réponse :
A = 16 - 4 * (-1/2)² - (4 + 2 * (-1/2))(3 - 4 * (-1/2))
A = 16 - 4 * 1/4 - (4 - 1)(3 + 2)
A = 16 - 1 - 3 * 5
A = 16 - 1 - 15
A = 16 - 16
A = 0