Perform the indicated operation(s) on the matrix.
\(\left[\begin{array}{rrr|r}2 & -2 & -4 & -14 \\
-1 & -2 & 3 & 17 \\
4 & -2 & -2 & -8\end{array}\right]\begin{array}{ll}\phantom{1} & \frac{1}{2}R_1 \to R_1 \\
\phantom{1} & \\
\phantom{1} & \end{array}\)