Sagot :
bonjour
5/3 - 1/6 = 10/6 - 1/6 = 9 /6 = 3 /2
- 1 + 1/2 + 1/5 = - 10 /10 + 5/10 + 2 /10 = - 3 /10
C = x² - 3 x - 1
si x = 3 , C = 9 - 9 - 1 = - 1
si x = - 2 , C = 4 + 6 - 1 = 9
si x = 0 , C = - 1
si x = 2 , C = 4 - 6 - 1 = - 3
bonjour
5/3 - 1/6 = 10/6 - 1/6 = 9 /6 = 3 /2
- 1 + 1/2 + 1/5 = - 10 /10 + 5/10 + 2 /10 = - 3 /10
C = x² - 3 x - 1
si x = 3 , C = 9 - 9 - 1 = - 1
si x = - 2 , C = 4 + 6 - 1 = 9
si x = 0 , C = - 1
si x = 2 , C = 4 - 6 - 1 = - 3