les * c'est des multiplications
Exercice 8 :
a. A = 8 * 1 - 1
A = 8 - 1
A = 7
b. A = 8 * 20 - 1
A = 160 - 1
A = 159
c. A = 8 * 7,5 - 1
A = 60 - 1
A = 59
Exercice 9 :
avec x = 2 et y = 5
I = 2 + 5 * 5
I = 2 + 25
I = 27
K = 7 * (5 - 2)
K = 7 * 5 - 7 * 2
K = 35 - 14
K = 21
J = 2² + 2 * 5 + 1
J = 4 + 10 + 1
J = 15
L = 2 * 2² + 3 * 5²
L = 2 * 4 + 3 * 25
L = 8 + 75
L = 83