Respostas

2013-11-18T13:30:20-02:00
3x(x-4)=0
3x²-12x=0
3x(x-4)=0
3x=0
x=0
x=4
S: [0,4]
  • Usuário do Brainly
2013-11-18T15:33:18-02:00
3x (x-4)=0
3 x^{2} -12x=0
x(3-12)
x=0
x=3-12x=-9