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Michel7502
@Michel7502
May 2019
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Est ce que quelqu'un peut m'aider pour l'ex car je ku arrive pas SVP un grand merci.
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Sulky
Verified answer
Bonsoir,
ce sont des identités remarquables à factoriser ; il y en a 3 qui sont :
a² - b² = (a + b)(a - b)
a² + 2ab + b² = (a + b)²
a² - 2ab + b² = (a - b)²
Alors,
G = (t + 3)² - 4²
G = (t + 3 - 4)(t + 3 + 4)
G = (t - 1)(t + 7)
H = (2x + 1)² - 5²
H = (2x + 1 - 5)(2x + 1 + 5)
H = (2x - 4)(2x + 6)
même principe pour la dernière, c'est à toi, commente ta réponse et je t'orienterai.
2 votes
Thanks 1
loulakar
H = 4(x - 2)(x + 3)
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Lista de comentários
Verified answer
Bonsoir,ce sont des identités remarquables à factoriser ; il y en a 3 qui sont :
a² - b² = (a + b)(a - b)
a² + 2ab + b² = (a + b)²
a² - 2ab + b² = (a - b)²
Alors,
G = (t + 3)² - 4²
G = (t + 3 - 4)(t + 3 + 4)
G = (t - 1)(t + 7)
H = (2x + 1)² - 5²
H = (2x + 1 - 5)(2x + 1 + 5)
H = (2x - 4)(2x + 6)
même principe pour la dernière, c'est à toi, commente ta réponse et je t'orienterai.