15 POINTS! + BRAINLIEST.
CORRECT ANSWERS ONLY PLEASE!!

Answer:
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