Réponses

2013-05-12T19:22:31+02:00

M = (x-7) (x+7)

N = (9-t) (9+t)

O = (4x-6) (4x+6)

 

E = (4x-2) [(3x+2) + (x-6)]

E = (4x-2) (3x+2+x-6)

E = (4x-2) (4x -4)

 

(4x-2) (4x -4) = 0

Donc 4x - 2 = 0 ; 4x = 2 ; x = 2/4 = 1/2 = 0,5

 

OU 4x-4 = 0 ; 4x = 4 ; x = 4/4 = 1.

 

EN ESPERANT T'AVOIR AIDE !