Réponses

Meilleure réponse !
2014-10-25T17:50:37+02:00
(2x²-4x+1)/(X-1)  = 2X-2-(1/X-1)
(2x²-4x+1)/(X-1) = (2x-2)(x-1) -1/x-1
(2x²-4x+1)/(X-1) = 2x²-2x-2x+2  -1/x-1
(2x²-4x+1)/(X-1) = (2x²-4x+2-1)(x-1)
(2x²-4x+1)/(X-1) = (2x²-4x+1)(x-1)

voila normalement c'est ca =)