Answer
The $\left( r+1 \right)th$ term of the expansion of ${{\left( a+b \right)}^{n}}$ is $\left( \begin{align}
& n \\
& r \\
\end{align} \right){{a}^{n-r}}{{b}^{r}}$.
Work Step by Step
See below:
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Section 10.5 - The Binomial Theorum - Concept and Vocabulary Check - Page 1092: 7
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