Find All Solutions for the System $\left\{ \begin{array} { l } y + x ^ { 2 } = 4 x \\y + 2 x = 8\end{array} \right.$

Find all solutions for the system. $\left\{ \begin{array} { l } y + x ^ { 2 } = 4 x \\y + 2 x = 8\end{array} \right.$