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Meilleure réponse !
2013-05-20T12:48:16+02:00

M=2x+6x

M=8x

 

H=3+5x

H=5x+3

 

J=5x-7

 

K=3x-x

K=2x

 

L=x+x

L=2x

 

exercice 2

 

M=7x-6x

M=x

 

T=2x-2x

T=0

 

S=-3x+5+2x

S=-x+5

2013-05-20T13:00:07+02:00

M = 2x +6x

M = 2x( 3 +1)

 

H = 3+5x 

J = 5x -7

K = 3x -x

K = x(3 -1)

 

L = x+x

 

Exercice 2.

M = 7x -6x

 M = x(7-6)

 

T = 2x-2x

T = 2x(+1 -1)

 

S = -3x +5 +2x

S = -x +5