Answer
$16x^{2}-7$
Work Step by Step
$7x^{2}+3+9x^{2}-10=7x^{2}+9x^{2}+3-10=(7+9)x^{2}-7=(16)x^{2}-7=16x^{2}-7$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.3 - Introduction to Polynomials - Exercise Set - Page 364: 31
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