9 The parametric equations of a curve are \(x = t ^ { 3 } , y = t ^ { 2 }\).
- Show that the equation of the tangent at the point \(P\) where \(t = p\) is
$$3 p y - 2 x = p ^ { 3 } .$$
- Given that this tangent passes through the point ( \(- 10,7\) ), find the coordinates of each of the three possible positions of \(P\).