Evaluate the algebraic expression for the given value of the variable. \[ x^{2}-4 x ; x=-13 \] \[ \text { For } x=-13, x^{2}-4 x= \] (Type an integer or a simplified fraction.)

Step 1 ：The given algebraic expression is a quadratic equation in the form of \(x^{2}-4x\).

Step 2 ：To evaluate this expression for \(x=-13\), we need to substitute \(x=-13\) into the equation and simplify.

Step 3 ：Substituting \(x=-13\) into the equation, we get \((-13)^{2}-4(-13)\).

Step 4 ：Simplifying the equation, we find that the result is 221.

Step 5 ：Final Answer: The evaluated algebraic expression for the given value of the variable is \(\boxed{221}\).