Fiche de révisions pour le brevet des collèges Calcul littéral - Maths
Exercice 6 : (2004). Soit l'expression A = 9x² ? 49 + (3x + 7) (2x + 3). 1. Développer l'expression A. 2. Factoriser 9x² ? 49, puis l'expression A. 3 ...
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