Iff(x) = 2x+ 8 andh(x) = 2x2 + 2x+ 6, find a functiongsuch thatfg=h.

I thought I had a handle on these questions until I got to this one. I have an answer but I am 95% sure it isnt right.

$\displaystyle ((x^2)/2)-14x-26$

Like I said I am pretty sure its not right.