Réponses

  • Utilisateur Brainly
2013-10-27T11:05:14+01:00
D=(2x+1)(x+3)+5(2x+1)=(2x+1)(x+8)
E=9x²-12x+4=(3x-2)²
F=(5x-2)²-(x+3)²=(6x+1)(4x-5)
G=x²+x(x-4)=x(2x-4)
H=4(2x+5)+(6-4x)(2x+5)=(2x+5)(-4x+10)
I=(x+7)²-36=(x+13)(x+1)
J=4x²+8x+4=4(x+1)²
K=(x+13)(x+1)-4(x+1)²=(x+1)(-3x+9)