Write $x$ as the sum of two vectors, one in Span $\{u_1,u_2,u_3\}$ and one in Span $\{u_4\}.$ Assume that $\{u_1,$dots,$u_4\}$ is an orthogonal basis for $R^4$

$u_1=\left[\begin{array}{c}0\\ 1\\ -5\\ -1\end{array}\right],u_2=\left[\begin{array}{c}4\\ 6\\ 1\\ 1\end{array}\right],u_3=\left[\begin{array}{c}1\\ 0\\ 1\\ -5\end{array}\right],u_4=\left[\begin{array}{c}6\\ -4\\ -1\\ 1\end{array}\right],x=\left[\begin{array}{c}14\\ -8\\ 2\\ 0\end{array}\right]$

$x=$

$($Type an integer or simplified fraction for each matrix element.$)$