Bonjour
Calculer chacune des expressions suivantes pour a = 5 et b = 2 :
A = 3b
A = 3 * 2
A = 6
B = 3a+7b
B = 3 * 5 + 7 * 2
B = 15 + 14
B = 29
C = 25+7a
C = 25 + 7 * 5
C = 25 + 35
C = 60
D = 45-ab
D = 45 - 5 * 2
D = 45 - 10
D = 35
E = 4(5b-a)
E = 4 (5 * 2 - 5)
E = 4 (10 - 5)
E = 4 * 5
E = 20
F = 2ab
F = 2 * 5 + 2
F = 10 * 2
F = 20
G = 5a-b
G = 5 * 5 - 2
G = 25 - 2
G = 23
H = 2a^2
H = 2 * 5²
H = 2 * 25
H = 50
I = 6-b^2
I = 6 - (2)²
I = 6 - 4
I = 2.