Réponse:

Exercice 1 :

A = 15-12x

B = 3y² -6y

C = 2x² + x + 8x + 4 = 2x² + 9x + 4

D = 3x² - 9x - 2x + 6 = 3x²- 11x + 6

E = 5a + 15 - 6a + 3 = -a + 18

F = 5b² - 10b - 10 + 6b = 5b² - 4b - 10

Exercice 2 : Programme A:

.3

.3-1=2

.2²=4

.4-1=3

Programme B :

.3

.3-2=1

.1x3=3

Programme A:

.-5

.-5-1= -6

-6² = -36

-36-1 = -37

Programme B :

.-5

.-5-2 = -7

. -7×(-5) = 35

????? dernière question