Part 5 answer (fg)(x)

For the functions f(x) = 3 - x and g(x) -x + 2x -63, find f+ g, f-g, fg, and Determine the domain for each function. What is the domain of f- g? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The domain of f - g is { } (Use a comma to separate answers as needed.) The domain of f- g is ( - co, co) . (Type your answer in interval notation.) The domain of f - g is . (f - g)(x) = (Simplify your answer )