Réponse :Bonjour,
Exercice 2
A= -7 - 6d - 5d² - 10d - 10d² + 10
= -15d² -16d +3
B = 3n + 4n² + 7 + 10 + 8n + 4n²
= 8n² + 11n + 17
C= 9-3 - 2w + w² -w² + 8w
= 6w + 6
Exercice 3
A = - 5s² - 13s + 7
B = -9f -2f² + 3 + f² -10f + 4
= -f² -19f + 7
C = -11p² -12p -9
