College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Summary, Review, and Test - Review Exercises - Page 91: 82

Answer

$-x^2-17xy-3y^2$; degree is $2$

Work Step by Step

Start by breaking down the parentheses. Then combine like terms to simplify. The degree is the power of the highest exponent. $(7x^2-8xy+y^2)+(-8x^2-9xy-4y^2)$ $7x^2-8xy+y^2-8x^2-9xy-4y^2$ $-x^2-17xy-3y^2$
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