Telecharger Cours

Calcul littéral

Exemples : ? 7 ( 2 + 3 x ) = 14 + 21 x car 7 × 2 = 14 et 7 × 3 x = 21 x. ? ( 5 + 8 x ) × 4 x = 20 x + 32 x ² car 4 x × 5 = 20 x et 8 x × 4 x = 32 x ².



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