Answer
$$\color{blue}{\bf{ 44 }}$$
Work Step by Step
We are given the two functions $\bf{f}$ and $\bf{g}$
$\bf{f(x) = x^2 + 3}$ and $\bf{g(x) = -2x + 6}$
and asked to find $\bf{( f+g )( -5 )}$
$(f+g)(-5)= f(-5)+ g(-5)$
$((-5)^2+3)+ (-2(-5) + 6)$
$25+3+ 10 + 6)$
$44$
$$\color{blue}{\bf{ 44 }}$$