Answer
3.5, -3.5
Work Step by Step
Deleting the 3rd row and 2nd column,
\[
M=
\left[ {\begin{array}{cc}
1 & 0.5 \\
-3 & 2 \\
\end{array} } \right]
\]
$2+1.5 = 3.5$
We multiply by $-1$ as 3+2 = 5 and we get $-3.5$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 6, Matrices and Determinants - Section 6.4 - Determinants and Cramer's Rule - 6.4 Exercises - Page 533: 20
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