Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Prerequisites - P.5 - Rational Expressions - Exercises - Page 48: 13


Real numbers greater than or equal to 7.

Work Step by Step

$\sqrt {x-7}$ The square root of a negative has no solution in the set of real numbers. It is necessary that: $x-7\geq0$ $x\geq7$
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