College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.4 - Page 641: 93

Answer

$2$

Work Step by Step

$2(-5)=-10$ $-(-3)(4)=-(-12)=+12$ $2(-5)-(-3)(4)=-10+12=+2$
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