Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 5 - Polynomials and Factoring - 5.4 Factoring Perfect-Square Trinomials and Differences of Squares - 5.4 Exercise Set - Page 333: 95



Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (2x^3-x+3)+(x^2+x-5) ,$ simplifies to \begin{array}{l} 2x^3-x+3+x^2+x-5 \\\\= 2x^3+x^2+(-x+x)+(3-5) \\\\= 2x^3+x^2+0x-2 \\\\= 2x^3+x^2-2 \end{array}
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