Can some one please tell me the answer to this question What does g(x)=2x, h(x)=x^2+4 equal?:confused:

Please refer to This Announcement

In addition to the announcement linked above, you haven't given a problem that has an answer. Each of those functions equals itself, of course, but there's nothing about how they interact there. There are, quite literally, an infinite number of possibilities for what the question, as asked, could be looking for.