Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 4 Quadratic Functions and Factoring - 4.7 Complete the Square - 4.7 Exercises - Skill Practice - Page 288: 2


To complete the square for the expression $x^{2}+bx$, add $(\displaystyle \frac{b}{2})^{2}$ so that the expression becomes a perfect square trinomial.

Work Step by Step

$x^{2}+bx+(\displaystyle \frac{b}{2})^{2}=(x+\frac{b}{2})(x+\frac{b}{2})=(x+\frac{b}{2})^{2}$
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