Here, it is asked us to find the function of a function, where f(x) and g(x) are two different functions, we are asked to solve the combined equation of these two functions.
For these, first we need to find g(f(x)) then you can find the answer for the given equations
g ( f(x) ) = g (V), it is given that f(x) = V, so we just substituted in f(x) position.
Now, we need to (g (V)) (3) = [tex]V^{2} - 7 = 3^{2} - 7 = 9 - 7 = 2[/tex]
