Réponses

  • Utilisateur Brainly
2013-01-06T21:45:51+01:00

Developper et factoriser : ( x-3)²+(x-3)(1-2x) (x-3)(x-3+1-2x)=-(x-3)(x+2)=-x²+x+6

(3x+2)+2x(3x+2)=(3x+2)(1+2x)=6x²+5x+2

Factoriser: 9x²-24x+16 : (3x-4)²

et (x+1)²-36 (x+1-6)(x+1+6)=(x-5)(x+7)