MOUZOUNI2PMRC1LYCEE MOUZOUNI2PMRC1LYCEE Mathématiques Answered Exercice 13 Factoriser les expressions suivantes. 4= (3x+2)+(x-3)(3x+2) B-(2x-1)(4x+3)-(2x-1)² C=(5x+6)-(9x+7) (5x+6). Exercice 15