Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 11 - Quadratic Functions and Equations - Mid-Chapter Review - Guided Solutions - Page 733: 1


Fill the blanks in this order: $\pm\sqrt{5}$, $7\pm\sqrt{5}$, $\sqrt{5}$, $\sqrt{5}$.

Work Step by Step

$(x-7)^{2}=5\qquad$...use the principle of square roots. $ x-7=\pm\sqrt{5}\qquad$...add $7$ to both sides. $x=7\pm\sqrt{5}$ The solutions are $7+\sqrt{5}$ and $7-\sqrt{5}$
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