Answer
$a^6$
Work Step by Step
$a^2\times a^{-9}\times a^{13}=a^{2+(-9)+13}=a^6$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Appendix B - Exercise Set - Page 742: 35
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