- Find (f + g)(x) of the following given functions.
1. f(x) = 2x2 + 3x - 4; g(x) = 2x + 3
2. f(x) = x2 - 3;g(x) = 2x + 5
3. f(x) = x2 - 7; g(x) = 5x + 4
4. f(x) = g(x) = 2x - 4
5. f(x) = x2 + 7x - 2;g(x) = x + 4