Réponses

2014-10-21T10:03:12+02:00
Bonjour

A = - 6x +5

pour x = 5 , A = - 30 +5 = - 25

pour x = - 2, A = 12 +5 = 17

pour x = - 5, A = 30 +5 = 35
Meilleure réponse !
2014-10-21T10:23:49+02:00
On considère l 'expression littérale
A = -6x +5
Calculer  x = 5 x = - 2 x = 7 x =  - 5


x = 5
A = - 6x + 5
A = - 6 * 5 + 5
A = - 30 + 5
A = - 25

x = - 2
A = - 6x + 5
A = - 6 * -  2 + 5
A = 12 + 5
A = 17

x = - 5
A = - 6x + 5
A = - 6 * - 5 + 5
A = 30 + 5
A = 35