Respostas

2014-05-29T23:45:42-03:00
F(x)=x² -2x -3
a) f(2)
f(2)= 2² -2.2 -3
f(2)= 4 -4 -3
f(2)= - 3

b)f(0)
f(0)=0² -2.0 -3
f(0)= 0 -0 -3
f(0)= - 3