Réponses

2012-12-28T23:45:46+01:00

A = 2(x-1) + 3 = 2x -2 + 3 = 2x+1

B = (3x+1)(x-2) = 3x²-6x + x - 2 = 3x² - 5x - 2

2012-12-29T00:04:54+01:00

A = 2(x - 1) + 3

A = 2x+1

 

B = (3x + 1 )(x - 2)

B = 3x2-5x-2