Answer
$k^3-k^2-7k+14$.
Work Step by Step
The given polynomial is
$=(k^3-7k+2)-(k^2-12)$
Clear the parentheses.
$=k^3-7k+2-k^2+12$
Group like terms.
$=k^3-k^2-7k+2+12$
Combine like terms.
$=k^3-k^2-7k+14$.
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 7 - Polynomial Equations and Factoring - 7.1 - Adding and Subtracting Polynomials - Exercises - Page 362: 35
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