Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 5 Polynomials and Polynomial Functions - Standardized Test Practice - Gridded Answer - Page 411: 15

Answer

See below

Work Step by Step

$f(x)=2x^4+3x^2-1$ There is one sign change for the coefficient. Thus, there is one zero. $f(-x)=2(-x)^4+3(-x)^2-1=2x^4+3x^2-1$ There is one sign change for the coefficient. Thus, there is one zero. Hence, there are two real zeros.
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