SOLUTION: determinant of 1 2 2 1 1 2 4 2 2 7 5 2 -1 4 -6 3

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Question 740918: determinant of 1 2 2 1
1 2 4 2
2 7 5 2
-1 4 -6 3

Answer by Alan3354(69443) About Me  (Show Source):
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determinant of 1 2 2 1
1 2 4 2
2 7 5 2
-1 4 -6 3
-------------
Det = -42