9514 1404 393
Answer:
[tex]\left[\begin{array}{cc}-7&24\\-16&13\end{array}\right][/tex]
Step-by-step explanation:
The matrix operation works on corresponding terms. For example, the lower left term is ...
5(-4) -4(-1) = -20 +4 = -16
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It works nicely to let a calculator or spreadsheet do the arithmetic.
