Réponses

2013-04-21T15:48:59+02:00

(x-1/x+2)>(x+1/x-2)

(x-1/x+2)-(x+1/x-2)>0

(x-1)(x-2)/(x+2)(x-2)- (x+1)(x+2)/(x-2)(x+2)

x²-3x+2-x²-3x-2/(x-2)(x+2)

-6x/(x-2)(x+2)