# Chapter 1 - Expressions, Equations, and Inequalities - Chapter Review: 18

114

#### Work Step by Step

We substitute the values into the equation: $3(19)((19)+2)-3(19)^2=3(19)(21)-3(361)=1197-1083=114$.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.