College Algebra (6th Edition)

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

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.6 - Page 88: 87

Answer

Set the denominator in an equation equaling 0. All solutions to this equation are excluded from the domain of the expression.

Work Step by Step

The denominator of a fraction cannot equal zero so any answer that will cause this to happen must be excluded from the domain.
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