The factors of the given expression are x , x - 2 and x - 4
[tex]V(x)= x^{3}- 6x^{2}+8x \\ \\
V(x)=x( x^{2} -6x+8) \\ \\
V(x)=x( x^{2} -2x-4x+8) \\ \\
V(x)=x[x(x-2)-4(x-2)] \\ \\
V(x)=x(x-2)(x-4) [/tex]
So the expression for height and length are x and x - 4
