Find (f + g)(x), (f-g)(x). (f. g)(x), and (5)(x) for each f(x) and g(x).
1. f(x) = 2x g(x) = -4x+5
3. f(x)=x-2 g(x) = 2x - 7
5.f(x) = x² +6 g(x) = 2x² + 3x-5
2. f(x)=x-1 g(x)=5x-2 4. f(x) = x² g(x)=x-5
6. f(x) = 3x² - 4 g(x) = x² - 8x + 4​