College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.4 - Radical Equations; Equations Quadratic in Form; Factorable Equations - 1.4 Assess Your Understanding - Page 119: 105

Answer

See below.

Work Step by Step

$-1$ is an extraneous solution of the equation, but Jane forgot to check that, that's why she didn't receive full marks.
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