Answer
$17n^2-14n-16$
Work Step by Step
$-5(-n^2+n-1)+3(4n^2-3n-7)$
Distibute the -5 and 3.
$5n^2-5n+5+12n^2-9n-21$
Combine similar terms.
$17n^2-14n-16$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set - Page 230: 12
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