Explanation:
We are given that f(x)^x = 3 + 10 = 13, but we cannot determine f(x) and x separately with the given information. So, we will consider the expression (f(x)^x - 13) instead.
Let's now find (f - g)(x) by substituting the definition of g(x) into the expression:
(f - g)(x) = f(x) - g(x) = f(x) - (2x - 4)
We still need more information to determine f(x) and x separately, but we can simplify the expression (f - g)(x) as much as possible:
(f - g)(x) = f(x) - (2x - 4) = f(x) - 2x + 4
That's the final answer.