Bonjour
Quelle expression a la plus grande valeur numérique pour x = 3 ?
A = x²+ 3x - 6
A = 3² + 3 * 3 + 6
A = 9 + 9 + 6
A = 24
C = (3x - 2)(4 - x)
C = (3 * 3 - 2) (4 - 3)
C = (9 - 2) * 1
C = 7 * 1
C = 7
B = -5x² - x + 2
B = - 5 * 3² - 3 + 2
B = - 5 * 9 - 1
B = 45 - 1
B = 44
D = -3(2x + 6)(7x - 1)
D = - 3 (2 * 3 + 6) (7 * 3 - 1)
D = - 3 (6 + 6) (21 - 1)
D = - 3 (12 * 20)
D = - 3 * 240
D = - 720.
