Consider the following functions: f(x) = x^2 + 7x, g(x) = 5x^2 - 1. Find (f + g)(x). Find the domain of (f + g)(x). Also, enter your answer using interval notation. Find (f - g)(x). Find the domain of (f - g)(x). Enter your answer using interval notation. Find (fg)(x). Find the domain of (fg)(x). Enter your answer using interval notation. Find (f/g)(x). Find the domain of (f/g)(x). Enter your answer using interval notation.