Réponses

  • Utilisateur Brainly
2013-05-27T20:44:14+02:00

A= 4 x²- 6x + 8 - 3x² + 9x - 2

   =x²+3x+6

   =(x+3/2)²-9/4+6

   =(x+3/2)²+15/4

2013-05-27T20:44:47+02:00

A = 4x² -6x +8 -3x² +9x -2 

 

A= x² +3x  +6