Bonjour CALCULER A=Xau carré-3X+2 POUR: A) X=0 B) X=1 C) C= -1

bonsoir

A = x² - 3 x + 2

si x = 0, A = 2
si x = 1, A = 1 - 3 + 2 = 0
si x = - 1 , A = 1 + 3 + 2 = 6

bonsoir,

x²-3x+2
0²-3(0) +2
0+0+2
2

b)
x²-3x+2
1²-3(1) +2
1-3+2
3-3
0

c)
x²-3x+2
(-1)² -3(-1) +2
1 +3+2
6