Answer
No, the expression $2x+3x^{-1}-5$ is not a polynomial.
Work Step by Step
The degrees of the variables in the algebraic expression must be non-negative, so this is not a polynomial.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.4 - Page 61: 2
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