Réponses

  • Utilisateur Brainly
2014-09-10T08:32:28+02:00
A= 2/3(3x + 1)²
A=2/3(9x² + 6x + 1)
A= 18/3x² + 12/3x + 2/3
A= 6x² + 4x + 2/3

B= (6x - 3/2)(6/5x + 4)
B= 36/5x² + 24x - 18/10x - 6
B= 36/5x² + 111/5x - 6

C= (7/5x + 4/3)²
C= 49/25x² + 56/30x + 16/9
C= 49/25x² + 28/15x + 16/9