Answer
11$\sqrt{2}$
Work Step by Step
8$\sqrt{2}$ + 3$\sqrt{2}$ = (8+3)$\times$$\sqrt{2}$ = 11$\sqrt{2}$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Appendix A - A.1 - Algebraic Expressions - Exercises - Page 543: 19b
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