Use Separation of Variables to Solve the Differential Equation $$\frac { d y } { d x } = \left( x ^ { 4 } + 2 \right) ^ { 2 }$$

Use separation of variables to solve the differential equation: $$\frac { d y } { d x } = \left( x ^ { 4 } + 2 \right) ^ { 2 }$$