15 points! + brainliest.
correct answers only

x^3 + 3 x^2 - 46

Step-by-step explanation:

f(x) = x^2 -36

g(x) = x^3 +2x^2 -10

We want to find

f+g (x) so we add then together

(f+g)(x) = x^2 -36 + x^3 +2x^2 -10

            = x^3 + 3 x^2 - 46