Answer
$5x^{4}$$-3x^{2}+9x-7$
Work Step by Step
You are given $(5x^{4}+7x+2)-$$(3x^{2}-2x+9)$.Rewrite and group into similar terms:
$5x^{4}+7x+2$$-3x^{2}+2x-9$
$(5x^{4})$$(-3x^{2})+(7x+2x)+(2-9)$
=$5x^{4}$$-3x^{2}+9x-7$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 8 - Polynomials and Factoring - Chapter Test - Page 539: 5
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