Question

What is (f + g)(x)? f(x)=x^3−x g(x)=x^3+2x^2−10

Answer 1

(f+g)(x)=f(x)+g(x) = x³-x +x³ +2x²-10=2x³ + 2x²-x-10
(f+g)(x)=2x³ + 2x²-x-10