Answer:
(f - g)(x) = -x² + 2x + 3
Step-by-step explanation:
Step 1: Define
f(x) = 2x + 3
g(x) = x²
(f - g)(x) = f(x) - g(x)
Step 2: Set up expression (Substitute)
(f - g)(x) = f(x) - g(x)
(f - g)(x) = 2x + 3 - x²
Step 3: Simplify
(f - g)(x) = -x² + 2x + 3
