Answer
$7\sqrt 2$
Work Step by Step
We simplify by factoring out $\sqrt 2$ and then combine the like terms as follows:
$$
3\sqrt 2+4\sqrt 2= (3+4)\sqrt 2=7\sqrt 2
.$$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.7 nth Roots; Rational Exponents - A.7 Assess Your Understanding - Page A60: 27
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