For this case, the first thing we must do is the composition of functions. We have: f (x) = x ^ 2- (1 / 2x) +4 g (x) = 8x-2 (gOf) (x) = 8 (x ^ 2- (1 / 2x) +4) -2 We rewrite: now the function: (gOf) (x) = 8x ^ 2- (8/2) x + 32-2 (gOf) (x) = 8x ^ 2-4x + 30 Answer: The final result is: (gOf) (x) = 8x ^ 2-4x + 30