Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 5 - Section 5.2 - Simplifying Algebraic Expressions - Exercise: 40

Answer

$-x^2-8x-3y^2+3xy$

Work Step by Step

To combine like terms, add the coefficients. $4x^2-5x-7x^2-3x-y^2+2x^2+3xy-2y^2=$ $(4+(-7)+2)x^2+((-5)+(-3))x+((-1)+(-2))y^2+3xy=$ $-x^2-8x-3y^2+3xy$
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