Réponses

2014-09-12T16:23:56+02:00

Bonjour


E=(2x+3) [5x-(x-8)]

E = (2x+3)(5x-x+8)

E = (2x+3)(4x+8)

E = 8x² + 16x +12x +24

E = 8x² + 28x +24

2014-09-12T16:37:08+02:00
BONJOUR

E= (2 x +3) [5x - ( x -8)]
E =( 2 x + 3) ( 5 x + 8 -x)
E = (2 x + 3) (4 x +8)
E = 8 x² + 16 x + 12 x +24
E = 8 x² + 28 x +24