Find the sum, difference, product, and quotient of the functions f(x) = 2x^2 + 9x + 10 and g(x) = x + 2. Determine the domain for each function. Simplify your answer. What is the domain of the sum of f and g? A. (-[infinity], [infinity]) B. (-[infinity], 2) C. (-[infinity], -2) D. (-[infinity], -1)