How do you find (f+g)(x) given f(x)=x21andg(x)=2x-3andh(x)=1-4x#?

1 Answer
Mar 20, 2018

See a solution process below:

Explanation:

We can rewrite (f+g)(x) as:

(f+g)(x)=f(x)+g(x)

Substituting gives:

(f+g)(x)=(x21)+(2x3)

(f+g)(x)=x21+2x3

(f+g)(x)=x2+2x13

(f+g)(x)=x2+2x+(13)

(f+g)(x)=x2+2x+(4)

(f+g)(x)=x2+2x4