The cubic equation

\(x^3+ax^2+bx-36=0\)

has a repeated positive integer root.

(i) If the repeated root is \(x=3\), find the other positive root and the value of \(a\) and of \(b\).

(ii) There are other possible values of \(a\) and \(b\) for which the cubic equation has a repeated positive integer root. In each case state all three integer roots of the equation.