Answer
See below.
Work Step by Step
$x^2+1\lt-5\\x^2\lt-6$
But $x^2$ is non-negative, thus the inequality has no solution.
$x^2+1\leq1\\x^2\leq0$
But $x^2$ is non-negative, thus the inequality has one solution only: $x=0$.
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.5 - Solving Inequalities - 1.5 Assess Your Understanding - Page 129: 126
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