Réponses

2014-01-11T13:38:34+01:00
B = x² - 2x + 3
a) Pour x = 0
B = 0² - 2(0) + 3
= 0-0+3
B = 3
b) Pour x = 1
B = 1² - 2(1) + 3
= 1-2+3
B = 2
c) Pour x = 3
B = 3² - 2(3) + 3
= 9-6+3
B = 6
d) Pour x = -3
B = (-3)² - 2(-3) + 3
= 9+6+3
B = 18