Simplify. Assume that variables can represent any real number. (a) (- 21)2 (b) (-7)2 (c)
Question:
(a) √ (- 21)2
(b) √ (-7)2
(c) √(9y2)
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Related Book For
College Algebra Graphs and Models
ISBN: 978-0321845405
5th edition
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
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