Réponses

2014-04-24T15:54:36+02:00
(5 - 3x^2) = 0
(5 - 3x)^2 -1=0
 [(5-3x)-1)] [(5-3x)+1]=0
(-3x+4)(-3x+6)
-3x+4=0      -3x+6=0
-3x=4   -3x=6
x= - 4/3    ou x= -6/3= -2