Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 9 - Section 9.2 - Solving Quadratic Equations by Completing the Square - Concept and Vocabulary Check: 5

Answer

$(\frac{b}{2})^2$

Work Step by Step

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