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Kawol37
@Kawol37
April 2019
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Bonjour j'aimerais savoir si mon exercise est bon.
Je développe E
E=( x+2)(x -3)+( x -3)
E=x^2-3x+2x-6+x-3
E=x^2-9
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E=( x+2)(x -3)+( x -3)
E=x^2-3x+2x-6+x-3 bien
E=x^2-9
bien
E=x²-9 (simplifié)
E=(x-3)(x+3) (factorisé)
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nonoduchablais
Salut :)
E = (x + 2)(x - 3) + (x - 3)
E = (x) x (x) + (x) x (-3) + 2 x (x) + 2 x (-3) + x - 3
E = x² - 3x + 2x - 6 + x - 3
E = x² - 9
Normalement, tu as juste! ^^
J'espère t'avoir aidé(e)! :)
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Lista de comentários
E=x^2-3x+2x-6+x-3 bien
E=x^2-9 bien
E=x²-9 (simplifié)
E=(x-3)(x+3) (factorisé)
E = (x + 2)(x - 3) + (x - 3)
E = (x) x (x) + (x) x (-3) + 2 x (x) + 2 x (-3) + x - 3
E = x² - 3x + 2x - 6 + x - 3
E = x² - 9
Normalement, tu as juste! ^^
J'espère t'avoir aidé(e)! :)