Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 11 - Section 11.5 - The Binomial Theorem - Exercise Set: 11



Work Step by Step

Expand, cancel, and multiply $\frac{7!}{5!} = \frac{7\cdot6\cdot5\cdot 4\cdot 3\cdot 2\cdot 1}{5\cdot4\cdot3\cdot 2\cdot 1} = 7\cdot6 = 42$
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