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Lidoboss
@Lidoboss
May 2019
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Salut vous pouvez m'aidez à trouver la solution de cet exercice svp ? Merci !
Anne prétend "Je peux calculer 57²-43² à l'aide d'une seule multiplication"
Comment procède-t-elle ? (Utiliser les identités remarquables)
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patmat
Rappel: a² - b² = (a-b)(a+b)
57² - 43² = (57-43)(57+43)
57² - 43² = (14)(100) = 1400
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Bonjour j'ai besoin que vous me fassiez cet exercice (ex37) avec des justifications. Merci d'avance. (Niveau Seconde)
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57² - 43² = (57-43)(57+43)
57² - 43² = (14)(100) = 1400