Réponses

  • Omnes
  • Modérateur confirmé
2014-02-08T22:29:22+01:00
2014-02-08T22:35:09+01:00
A= (2x-3)x(3x-1)+(2x-3)x(2x-3)
A=[2xX3x+2xX(-1)-3X3x-3X(-1)]+[2xX2x+2xX(-3)-3X2x-3X(-3)]
A=6 x^{2} -2x-9x+3+4 x^{2} -6x-6x+9
A=10 x^{2} -30x+12