Exercices de 3ème ? Chapitre 2 ? Calcul littéral
Corrigés. Exercice 1. A = 3(4x 7) 4(2.. x ? 9). A = 12x + 21 + 8x ? 36. A ... Exercice 19. 1. On a 4 x2?12 x+9=(2x?3)2 . 2. On a (2 x?3)2?4=(2x?3?2 ...
Corrigés. Exercice 1. A = 3(4x 7) 4(2.. x ? 9). A = 12x + 21 + 8x ? 36. A ... Exercice 19. 1. On a 4 x2?12 x+9=(2x?3)2 . 2. On a (2 x?3)2?4=(2x?3?2 ...