Réponses

  • Utilisateur Brainly
2013-10-27T11:30:45+01:00
soit D =(2x+3)² +(2x+3)(7x-2)
          =(2x+3)(2x+3+7x-2)
          =(2x+3)(9x+1)
2013-10-27T11:35:19+01:00
D= (2x+3)2+(2x+3)(7x-2)
= (2x+3)[(2x+3)+(7x-2)]
= (2x+3)(2x+3+7x-2)
= (2x+3)(9x+1)