diketahui p(X) = 2x dan g(X) = 4/x+1 x tidak boleh sama dengan -1 rumus fungsi (p-q) (x) =

g(x) dianggap 4/(x + 1)
(p - q)(x) = p(x) - q(x) = 2x - 4/(x + 1)
= (2x(x + 1) - 4)/(x + 1)
= (2x² + 2x - 4)/(x + 1)
= 2(x² + x - 2)/(x + 1)