9 The function f is defined for \(x > 0\) and is such that \(\mathrm { f } ^ { \prime } ( x ) = 2 x - \frac { 2 } { x ^ { 2 } }\). The curve \(y = \mathrm { f } ( x )\) passes through the point \(P ( 2,6 )\).
- Find the equation of the normal to the curve at \(P\).
- Find the equation of the curve.
- Find the \(x\)-coordinate of the stationary point and state with a reason whether this point is a maximum or a minimum.