Evaluating a quadratic expression: Integers Evaluate the expression when $m=3$ \[ m^{2}-6 m-5 \]

Step 1 ：The problem is asking to evaluate the expression \(m^{2}-6 m-5\) when \(m=3\).

Step 2 ：Substitute \(m=3\) into the expression: \((3)^{2}-6(3)-5\).

Step 3 ：Simplify the expression to get the final result: \(-14\).

Step 4 ：The result of the expression \(m^{2}-6 m-5\) when \(m=3\) is \(\boxed{-14}\).