Algebra 2 (1st Edition)

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

Chapter 5 Polynomials and Polynomial Functions - 5.4 Factor and Solve Polynomial Equations - 5.4 Exercises - Skill Practice - Page 357: 41

Answer

Option C

Work Step by Step

Solving the equation by factoring and setting the factors equal to zero, we find: $$3x^4-x^3-27x^2+9x=0 \\ x\left(3x-1\right)\left(x+3\right)\left(x-3\right)=0 \\ x=0,\:x=\frac{1}{3},\:x=-3,\:x=3$$
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