Respostas

2013-07-10T17:03:17-03:00
F(x) = 2x² + 4
f(1) = 2 . (1²) + 4 
f(1) = 2 . 1 + 4
f(1) = 2 + 4
f(1) = 6

f(-3) = 2 . (-3²) + 4
f(-3) = 2 . 9 + 4
f(-3) = 18 + 4
f(-3) = 22

f(1) + f(-3) = 
6 + 22 = 28