Respostas

2013-12-03T21:59:59-02:00
F(x)=3x^2-9x+6 p/ f(x)=0 3x^2-9x+6=0 Delta=b^2-4.a.c Delta=-9^2-4.3.6 Delta=81-72 Delta=9 x=9+-3/6 x1=2 e x2=1