please help me with this. I'm also wondering if the 7 in parentheses means x=7 or 7 times f(x) + g(x). i keep getting it wrong, and i'm not sure why

Evaluate the function for f(x) = x + 3 and g(x) = x2 - 2. (f + g) (7 ) (f + g) (7) = 1 X Check which variable(s) should be in your