Evaluate $3 \times 3$ Determinant $$\left| \begin{array} { c c c } 1 & 4 & - 1 \\5 & 1 & 4 \\4 & 6 & 5\end{array} \right|$$

Short Answer

Evaluate $3 \times 3$ determinant. $$\left| \begin{array} { c c c } 1 & 4 & - 1 \\5 & 1 & 4 \\4 & 6 & 5\end{array} \right|$$ Use the properties of determinants to your advantage. Please enter your answer as a number.