Réponses

  • Utilisateur Brainly
2013-04-23T19:58:33+02:00

A=(3x-1)(4x-3)-(9x²-6x+1)

  =(3x-1)(4x-3)-(3x-1)²

  =(3x-1)(4x-3-3x+1)

  =(3x-1)(x-2)

 

A=(3x-1)(x-2)

  =3x²-6x-x+2

  =3x²-7x+2