# Chapter 9 - Section 9.2 - Solving Quadratic Equations by Completing the Square - Concept and Vocabulary Check: 8

$\frac{1}{4}$

#### Work Step by Step

The coefficient of x is 1. Adding the square of half the coefficient creates a perfect square. $(1\div2)^2=(\frac{1}{2})^2=\frac{1}{4}$

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.