Answer
$2y^{4}-5y^{2}+x^{2}+1$
Work Step by Step
We are given the expression $(5y^{4}-7y^{2}+x^{2}-3)+(-3y^{4}+2y^{2}+4)$. We can combine like terms to simplify.
$(5y^{4}-3y^{4})+(-7y^{2}+2y^{2})+x^{2}+(-3+4)=2y^{4}-5y^{2}+x^{2}+1$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Section 5.3 - Polynomials and Polynomial Functions - Exercise Set - Page 279: 57
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