Question

Let f(x)=3x2 +4 and let g (x)= x+2
find (f+g) (x).

Answer 1

(f + g)(x) equals to f(x) + g(x)

add the function
f(x) + g(x) = 3x² + 4 + x + 2
f(x) + g(x) = 3x² + x + 6

The answer is 3x² + x + 6