Question

Use the function to answer the question.

f(x)=x^2-4; g(x)=x+2

Which is equal to (f+g)(x)?

x^2-2

x^2+4x

x^2+x-2

x^3+2x^2-4x-8

Answer 1

x^2+x-2

Explanation:

f(x)=x^2-4;

g(x)=x+2

(f+g)(x) = x^2-4+ x+2

Combine like terms

=x^2 +x -2