#### Answer

($\sqrt15+\sqrt21)$

#### Work Step by Step

We start with the following expression:
$\sqrt3*(\sqrt5+\sqrt7)$
Distribute $\sqrt3$ into the parenthesis.
$(\sqrt{3*5}+\sqrt{3*7})$
Simplify the expression.
($\sqrt{15}+\sqrt{21})$

Published by
Cengage Learning

ISBN 10:
1285194055

ISBN 13:
978-1-28519-405-9

($\sqrt15+\sqrt21)$

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