Answer: [tex]2^x + 4[/tex]
==================================================
Explanation:
We simply add the expressions we are given, though we cannot combine the terms (as they aren't like terms). There's not much to show in terms of steps, though I guess you could have the following:
[tex]h(x) = f(x)+g(x)\\\\h(x) = 2^x+4\\\\[/tex]
Adding 4 onto 2^x means we shift the 2^x curve up four units.
