Simple algebra question?

Question

Could someone help me with this. I simply have forgotten the steps to complete the problem!! :(

Let F(x) = x^2 + 3 and G(x) = -2x + 6 find the following

(F + G) (-5)

Thanks

Answer 1

-5 (x^2 -2x +3+6)

=-5(x^2-2x+9)

=

-5x^2+10x-54

Answer 2

(F + G)(-5) = F(-5) + G(-5)

Plug -5 into both functions then add the two answers.

Should come out to 44.  

Answer 3

(F + G) (-5)

=(x^2 + 3 -2x + 6)(-5)

=(x^2 -2x + 9)(-5)

=25+10+9

=44

or calculate F (-5) + G(-5)