Answer
False
Work Step by Step
Write the given equation such as: $x^2+49=0$
This implies $x=\pm \sqrt {-49}$
or, $x=7i,-7i$
Thus, $x \ne7,-7$
Hence, the given statement is false.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 5 - Section 5.7 - Polynomial Equations and Their Applications - Exercise Set - Page 394: 108
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