Réponses

2013-01-16T12:18:16+01:00

1)

A(0) = 9    B(0) = 9

A(2) = 9    B(2) = 9

2) non

A = x² + 14x + 13 - 4x² - 8x - 4 = -3x² + 6x + 9

B = 25 - 20x + 4x² - 6x² + 24x - 16 = -2x² + 4x + 9