Answer:
(f - g)(x) = 11x²
(f - g)(0) = 0
Step-by-step explanation:
To find (f - g)(x), you need to subtract g(x) from f(x).
f(x) = 4x²
g(x) = -7x²
(f - g)(x) = 4x² - (-7x²)
(f - g)(x) = 4x² + 7x²
(f - g)(x) = 11x²
Now that you have (f - g)(x), solve for (f - g)(0). Plug in 0 wherever there's an x.
(f - g)(x) = 11x²
(f - g)(0) = 11(0)²
(f - g)(0) = 11(0)
(f - g)(0) = 0