Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.2 - Adding and Subtracting Polynomials - 4.2 Exercises: 53

Answer

$8x^2+x-2$

Work Step by Step

Removing the grouping symbols and then combining like terms, the given expression, $ (5x^2+7x-4)+(3x^2-6x+2) ,$ simplifies to \begin{array}{l}\require{cancel} 5x^2+7x-4+3x^2-6x+2 \\\\= (5x^2+3x^2)+(7x-6x)+(-4+2) \\\\= 8x^2+x-2 .\end{array}
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