10. (a) Factorise completely \(x ^ { 3 } - 6 x ^ { 2 } + 9 x\)
(b) Sketch the curve with equation
$$y = x ^ { 3 } - 6 x ^ { 2 } + 9 x$$
showing the coordinates of the points at which the curve meets the \(x\)-axis.
Using your answer to part (b), or otherwise,
(c) sketch, on a separate diagram, the curve with equation
$$y = ( x - 2 ) ^ { 3 } - 6 ( x - 2 ) ^ { 2 } + 9 ( x - 2 )$$
showing the coordinates of the points at which the curve meets the \(x\)-axis.