Answer
$ 7z^{3}-2z^{2}-16$
Work Step by Step
Simplify and write in standard form
$ (8z^{3}-3z^{2}-7)-(z^{3}-z^{2}+9) $
Distribute the $-$ in the second parenthesis
$ 8z^{3}-3z^{2}-7-z^{3}+z^{2}-9 $
Combine like terms
$ 7z^{3}-2z^{2}-16$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 8 - Polynomials and Factoring - Chapter Review - 8-1 Adding and Subtracting Polynomials - Page 524: 15
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