Réponses

Meilleure réponse !
  • Utilisateur Brainly
2013-09-23T07:52:53+02:00
X²/(x+2)>1
x²/(x+2)-(x+2)/(x+2)>0
(x²-x-2)/(x+2)>0
(x-2)(x+1)/(x+2)>0
-2<x<-1 ou x>2

(-3x+1)/(2-x) <= (-4x+5)/(x+3)
(-3x+1)/(2-x) - (-4x+5)/(x+3) <=0
(3x-1)/(x-2) - (-4x+5)/(x+3) <=0
(7x²-5x+6)/(x²+x-6) <=0
(7x²-5x+6)/((x-2)(x+3)) <=0
-3<x<2