Algebra 2 (1st Edition)

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

Chapter 5 Polynomials and Polynomial Functions - 5.7 Apply the Fundamental Theorem of Algebra - 5.7 Exercises - Skill Practice - Page 384: 28

Answer

$$x^3-4x^2-5x+20$$

Work Step by Step

We start with a polynomial with the given factors. We then multiply it out to find: $$ \left(x-4\right)\left(x^2-5\right) \\ x^3-4x^2-5x+20$$
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