(f + g)(x) = f(x) + g(x) = (- 7 x - 5) + (10 x - 12)
Group like terms to obtain
(f + g)(x) = 3 x - 17
Question 6: Functions f and g are defined by
f(x) = 1/x + 3x and g(x) = -1/x + 6x - 4
find (f + g)(x) and its domain.
Solution to Question 6:
(f + g)(x) is defined as follows
(f + g)(x) = f(x) + g(x)