Jawabanmu

2014-03-25T09:05:36+07:00
(ho (gof)) (x) = (gof) (x) = g ( f (x))  = g (2x)  = 2x + 2  (ho(gof)) (x) = h (2x+2) = (2x+2)^3  = 8x^3 +24x^2 + 24x+8