2 The variables \(x\) and \(y\) are related by the differential equation
$$9 \frac { d ^ { 2 } y } { d x ^ { 2 } } + 6 \frac { d y } { d x } + y = 3 x ^ { 2 } + 30 x$$
- Find the general solution for \(y\) in terms of \(x\).
- State an approximate solution for large positive values of \(x\).