Réponse :
Explications étape par étape
Bonjour
Exercice 16 :
On donne M = -3 x m + 5 x p - 1.Calculer M pour :
a) m = p = 2
M = -3 x 2 + 5 x 2 - 1
M = -6 + 10 - 1
M = 10 - 7
M = 3
b) m = 2 et p = -2
M = -3 x 2 + 5 x (-2) - 1
M = -6 - 10 - 1
M = -17
c) m = - 2 et p = 2
M = -3 x (-2) + 5 x 2 - 1
M = 6 + 10 - 1
M = 16 - 1
M = 15
d) m = p = -2
M = -3 x (-2) + 5 x (-2) - 1
M = 6 - 10 - 1
M = 6 - 11
M = (-5)
Exercice 17 :
On donne P = (-3s + 6 ) x (7 - s).Calculer P pour :
a) s = 2
P = (-3 x 2 + 6 ) x (7 - 2)
P = (-6 + 6) x 5
P = 0
b) s = 7
P = (-3 x 7 + 6 ) x (7 - 7)
P = (-21 + 6) x 0
P = 0
d) s = -5
P = (-3 x (-5) + 6 ) x (7 - (-5))
P = (15 + 6)(7 + 5)
P = 21 x 12
P = 252
e) s= 12
P = (-3 x 12 + 6 ) x (7 - 12)
P = (-36 + 6) x (-5)
P = (-30) x (-5)
P = 150