Given \(x=-2\) is a root of the function \(f(x)={x}^{3}-3{x}^{2}-8x+4\), fully factorise \(f(x)\).

Given \(x=-2\) is a root of the function \(f(x)={x}^{3}-3{x}^{2}-8x+4\), fully factorise \(f(x)\). - চর্চা