Réponses

Meilleure réponse !
2014-02-13T21:42:10+01:00
E=(9x^2-1)+(3x-1)
E=(3x-1)(3x+1)+(3x-1)
E=(3x-1)(3x+1+1)
E=(3x-1)(3x+2)
2014-02-13T21:48:16+01:00
E = ( 9x² -1 ) + 3x - 1
E = (3x-1)(3x+1) +(3x-1)
e = (3x-1)(3x+1 +1)
E = (3x-1)(3x+2)