Answer
$8k^{2}+2k-7$
Work Step by Step
We are given the polynomial $2k+3k^{2}+5k^{2}-7$.
We can use the distributive property to combine like terms.
$2k+3k^{2}+5k^{2}-7=(3+5)k^{2}+2k-7=(8)k^{2}+2k-7=8k^{2}+2k-7$
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 4 - Section 4.2 - Adding and Subtracting Polynomials - 4.2 Exercises - Page 285: 43
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