Réponses

2013-03-14T13:48:50+01:00

A= 14x + 12

  = 2*7x+2*6

  = 2(7x+6)

 

B=18x²+6x

  = x(18x+6)

 

C= (3x - 5)(5x -9)-(3x - 6)(3x - 5)

   = (3x-5) [(5x-9)-(3x-6)]

   = (3x-5) (5x-9-3x+6)

   = (3x-5) (2x-3)

2013-03-14T15:01:50+01:00