# Chapter 1 - Expressions, Equations, and Inequalities - 1-3 Algebraic Expressions - Practice and Problem-Solving Exercises - Page 23: 44

-765

#### Work Step by Step

Begin by plugging in the given variable value: $5(-5)^{3}-6(-5)^{2}-2(-5)$ Then we simplify. It is important to keep track of the negatives and keep in mind the order of operations. Evaluate the exponents first and then subtraction and addition. $5(-5)^{3}-6(-5)^{2}-2(-5)$ =$-625-150+10$ =$-765$

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