Answer
$$-14$$
Work Step by Step
Finding the determinant of the matrix using the rules of matrices, we find:
$$ \det \begin{pmatrix}4&-2\\ 3&-5\end{pmatrix}\\ 4\left(-5\right)-\left(-2\right)\cdot \:3 \\ -14$$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 8 - Systems of Linear Equations and Problem Solving - Test: Chapter 8 - Page 573: 16
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