What is (f+g)(x)?

Question

f(x)=x^2−36

g(x)=x^3+2x^2−10

Answer 1

This answers this question and the next:

(f + g)(x) means that you have to add both f(x) and g(x).
(f + g)(x) = x^2 − 36 + x^3 + 2x^2 − 10
(You have to simplify this)

Similarly,
(f * g)(x) means that you have to multiply f(x) and g(x).