Respostas

2013-09-04T15:15:37-03:00
F(1) = 1^2 + 2 x 1 - 8
f (1) = 1 + 2 - 8
f(1) =  - 5


f (-2) = (-2)^2 + 2 x (-2) - 8
f(-2) = 4 -4 - 8
f (-2) = - 8
2013-09-04T15:17:45-03:00