Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 11 - Section 11.4 - The Binomial Theorem - Exercise Set - Page 866: 61



Work Step by Step

Binomial coefficient can be found as: $\dbinom{n}{r}=\dfrac{n!}{r!(n-r)!}$ Thus, $\dbinom{8}{1}=\dfrac{8!}{1!(8-1)!}$ or, $=\dfrac{ 8 \cdot 7!}{7!}$ or, $=8$
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