The given functions are
First, we have to find the composite function
We have to enter g(x) inside f(x), as follows
Now, we evaluate this composition when x = 0.
Therefore, the evaluation of the first case gives 2.
Now, we find the second composition, this time we have to enter f(x) inside g(x).
We evaluate the composition when x = 2.
Therefore, the evaluation of the second case gives 9.