Need help, please and thank you.

Answer:
The answer to your question is: (f +g)(x) = 2x² +x -11
Step-by-step explanation:
f(x) = 2x + 3
g(x) = x² + x/2 -7
Find (f+ g)(x)
(f+ g)(x) = 2(x² + x/2 -7) + 3 substitution
(f +g)(x) = 2x² +x -14 + 3 simplify like terms
(f +g)(x) = 2x² +x -11 result