Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 8 - Section 8.1 - The Square Root Property and Completing the Square - Exercise Set - Page 593: 25



Work Step by Step

Given: $x^2-14x$ We need to add $(-7)^2$ to complete the square. Thus, $x^2+2x+(-7)^2=x^2+(-7)^2+(2)(x)(1)$ Apply difference of polynomial formula. or, $x^2+(-7)^2+(2)(x)(1)=(x-7)^2$
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