Jawabanmu

2014-04-09T20:21:46+07:00
Insyaallah benar
(Fog) (x) = 2x" + 4x -6
f (g(x)) = 2x" + 4x -6
f (2x+3) = 2x" + 4x -6 - x"
f (2x+3) = x" + 4x - 6