Step 1
Write out these functions
[tex]\begin{gathered} f(x)=x^2\text{ - 13} \\ g(x)\text{ = 16 - x} \\ \\ \end{gathered}[/tex]Step 2
To find (f + g)(x), you add the two functions together.
Therefore, f(x) + g(x)
[tex]\begin{gathered} =x^2\text{ - 13 + 16 - x} \\ =x^2\text{ - x + 3} \end{gathered}[/tex]