Réponses

2013-09-15T18:23:45+02:00
C = 4x² +12x +9 -9x² +24x -16
  = -5x² +36x -7

D = x² -10x +25 +1 -8x +16x²
  = 17x² -18x +26

E = 16x² -24x +9 -6x² +4x -3x +2
   = 10x² -23x +11