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
