Réponses

2013-05-13T17:14:10+02:00

A= 3*3 - 2 * 3 + 2 = 9 - 6 + 2 = 3 + 2 = 5

 

A= -2  - 2 - 2 - 2 + 2 = -2

Meilleure réponse !
2013-05-13T17:20:04+02:00

A = x²-2x+2. (x=3) ==> = 3²-6+2 = 9 -4 = 5

 

 

 

A = x²-2x+2. (x=-2) ==> 4 - 4 + 2 = 2