Answer
-12$z^{2}$+6z+1
Work Step by Step
(-9$z^{2}$+6z+2)-(3$z^{2}$+1)
=-9$z^{2}$+6z+2-3$z^{2}$-1
=-9$z^{2}$-3$z^{2}$+6z+2-1
=-12$z^{2}$+6z+1
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Section 10.1 - Adding and Subtracting Polynomials - Exercise Set - Page 704: 16
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