If f(x)=x43 and g(x)=4x2+2x4 find (f+g)(x) ?

1 Answer
Jun 15, 2018

(f+g)(x)=4x2+94x7

Explanation:

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

Substitute f(x)=x43:

(f+g)(x)=x43+g(x)

Substutitute g(x)=4x2+2x4:

(f+g)(x)=x43+4x2+2x4

Combine like terms:

(f+g)(x)=4x2+94x7