Answer
$78$
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}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
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 - Page 961: 40
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
