Algebra 2 (1st Edition)

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

Chapter 5 Polynomials and Polynomial Functions - 5.9 Write Polynomial Functions and Models - 5.9 Exercises - Quiz for Lessons 5.7-5.9 - Page 399: 2


$x=5$, $x=-4$ or $x=\pm\frac{3}{\sqrt2}$

Work Step by Step

$f(x)=2x^4-2x^3-49x^2+9x+180=(x-5)(x+4)(2x^2-9)=0$ Thus $x=5$, $x=-4$ or $x=\pm\frac{3}{\sqrt2}$
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