Question

Find (f + g)(x), (f - g)(x), (f . g)(x), and (f/g)(x) for each f(x) and g(x).

b. b. f(x) = a^2 - 1 , g(x) = a/(a + 1)
need to find (f+g)(x), (f-g)(x), and (f/g)(x)

thanks in advance.