Réponses

2013-02-25T14:51:34+01:00

Bonjour,

 

a) x = 4

 

A = 3*4+2

A = 12+2

A =14

 

b) x = -2

 

A = (3*-2)+2

A = -6+2

A = - 4

  

c) x = -1

 

A = (3*-1)+2

A = -3+2

A = -1

 

d) x=2/3

 

A = (3*2/3) +2 

A = 2 + 2

A = 4

 

J'espère que tu as compris

a+