document.write( "Question 740918: determinant of 1 2 2 1
\n" ); document.write( " 1 2 4 2
\n" ); document.write( " 2 7 5 2
\n" ); document.write( " -1 4 -6 3
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Algebra.Com's Answer #451788 by Alan3354(69443)\"\" \"About 
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determinant of 1 2 2 1
\n" ); document.write( " 1 2 4 2
\n" ); document.write( " 2 7 5 2
\n" ); document.write( " -1 4 -6 3
\n" ); document.write( "-------------
\n" ); document.write( "Det = -42
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