Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 12 - Sequences; Induction; the Binomial Theorem - Chapter Review - Review Exercises - Page 839: 30

Answer

$x^5+10x^4+40x^3+80x^2+80x+32$

Work Step by Step

We are given the expression: $(x+2)^5$ Expand the expression using the Binomial Theorem: $(x+2)^5=\binom{5}{0}x^52^0+\binom{5}{1}x^42^1+\binom{5}{2}x^32^2+\binom{5}{3}x^22^3+\binom{5}{4}x^12^4+\binom{5}{5}x^02^5$ $=x^5+5x^4(2)+10x^3(4)+10x^2(8)+5x(16)+32$ $=x^5+10x^4+40x^3+80x^2+80x+32$
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