Solve the Problem $| \mathrm { A } |$ By Expanding Across the Third Row

Essay

Solve the problem.
-Evaluate $| \mathrm { A } |$ by expanding across the third row. Show all your work.
$$A = \left[ \begin{array} { r r r r } - 1 & 1 & 0 & 2 \\- 5 & 2 & 4 & - 5 \\0 & 5 & 0 & - 1 \\1 & 2 & - 1 & 0\end{array} \right]$$