The cubic polynomial \(f(x)\) is defined by \(f(x) = x^3 - 3x^2 - x + 3\). 

(i) Find the quotient and remainder when \(f(x)\) is divided by \((x + 1)\). 

[3] 

(ii) Hence find the three roots of the equation \(f(x) = 0\). 

[3]