Question

What is (f + g)(x)?
f(x) = -2x^2
g(x) = -2x^2 + 9x

Answer 1

-4x^2+9x

Explanation:

Adding boh gives

(f+g)(x)=-2x^2+(-2x^2+9x)

=-2x^2-2x^2+9x

=-4x^2+9x