Please help ASAP 20 pts + brainliest to right/best answer

Answer:
the answer is C
Step-by-step explanation:
The equation is just asking for you to subtract the entire function of f from the function of G. This directly translates to (x^2) - (3x +5) which cannot be simplified further than the subtraction sign. You end with x^2 - 3x -5
Hope this helps