Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - Chapters 1-5 Cumulative Review Problem Set - Page 233: 25

Answer

$3x^{3}-7x^{2}-2x+8$

Work Step by Step

To find the product of $(x-2)$ and $(3x^{2}-x-4)$, we need to use the distributive property in which each term of the first polynomial is multiplied to each term of the second polynomial. Then, we simplify the resultant expression: $(x-2)(3x^{2}-x-4)$ =$x(3x^{2}-x-4)-2(3x^{2}-x-4)$ =$3x^{3}-x^{2}-4x-6x^{2}+2x+8$ =$3x^{3}-x^{2}-6x^{2}-4x+2x+8$ =$3x^{3}-7x^{2}-2x+8$
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