Réponses

2013-01-21T11:18:46+01:00

1. A = 3(x² - 6x + 9) = 3(x-3)²

2.

B = 4(x² - 25) = 4(x-5)(x+5)

C = (x+1)(x²-1-8) = (x+1)(x²- 9) = (x+1)(x-3)(x+3)

D = (x-1)(4x² - 32x + 64) = 4(x-1)(x² - 8x + 16) = 4(x-1)(x-4)²