#### Answer

$15x^{13}$

#### Work Step by Step

RECALL:
$a^m \cdot a^n = a^{m+n}$
Multiply the numerical coefficients, then apply the rule above to the variable to obtain:
$=15x^{7+6}
\\=15x^{13}$

Published by
Pearson

ISBN 10:
0-13417-894-7

ISBN 13:
978-0-13417-894-3

$15x^{13}$

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