document.write( "Question 1117197: Find the value of k which matrix is
\n" ); document.write( "|2. - 10 - 1, 1 2k+3 1, 4 3 2|=75 \n" ); document.write( "

Algebra.Com's Answer #732218 by stanbon(75887) $\"\"$ $\"About$

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Find the value of k which matrix is
\n" ); document.write( "2 - 10 -1
\n" ); document.write( "1 2k+3 1
\n" ); document.write( "4 3 2 =75
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\n" ); document.write( "2*2k+3*2 + 1*3*-1 + 4*1*-10 - [-1*(2k+3)*4 + 1*3*2 + 2*1*-10]
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\n" ); document.write( "= 8k+12 -3 -40 - [-8k-12 +6 - 20]
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\n" ); document.write( "= 8k-31 - [-8k-26]
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\n" ); document.write( "16k -5 = 75
\n" ); document.write( "16k = 80
\n" ); document.write( "k = 5
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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