Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter R - Elementary Algebra Review - R.4 Polynomials - R.4 Exercise Set: 40



Work Step by Step

Substituting $y$ with $3$, the given expression, $ -y+3y^2+2y^3 ,$ evaluates to \begin{array}{l}\require{cancel} -(3)+3(3)^2+2(3)^3 \\\\= -3+3(9)+2(27) \\\\= -3+27+54 \\\\= 78 .\end{array}
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