Find f+g, f-g, fg, and $\frac{f}{g}$. Determine the domain for each function.
f(x) = x + 5, g(x) = $3x^2$
(f+g)(x) = $\Box$ (Simplify your answer.)
What is the domain of f+g?
A. The domain of f+g is (Type your answer in interval notation.)
B. The domain of f+g is { } (Use a comma to separate answers as needed.)
C. The domain of f+g is $\emptyset$.
(f-g)(x) = $\Box$ (Simplify your answer.)
What is the domain of f-g?
A. The domain of f-g is { } (Use a comma to separate answers as needed.)