#### Answer

See below.

#### Work Step by Step

The exponent of $a$ decreases in every term, going from $n$ to $0$.

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Published by
Pearson

ISBN 10:
0-13417-894-7

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

See below.

The exponent of $a$ decreases in every term, going from $n$ to $0$.

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