College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.5 - Page 160: 17


$x=-\sqrt 10,\sqrt 10$

Work Step by Step

$5x^{2}+1=51$ $5x^{2}=50$ $x^{2}=10$ $x=-\sqrt 10,\sqrt 10$ Isolate $x$ on one side by combining the other term with the other side. Then divide both sides, and then take the square root of both sides to get two answers.
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