document.write( "Question 347423: find the product of \r
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Algebra.Com's Answer #248417 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
See this solver for more help with multiplying matrices.\r
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\n" ); document.write( "\n" ); document.write( "Since the first matrix is a 2 by 3 matrix and the second matrix is a 3 by 2 matrix, this means that the resulting matrix will be a 2 by 2 matrix. The final matrix will have the same number of rows as the first matrix and the same number of columns as the second matrix.\r
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\n" ); document.write( "\n" ); document.write( "So the final resulting matrix will look like:\r
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\n" ); document.write( "\n" ); document.write( "\"%28matrix%282%2C2%2Cx%2Cx%2Cx%2Cx%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "note: the \"x\"s are just placeholders for now\r
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\n" ); document.write( "\n" ); document.write( "Multiply the corresponding entries from the 1st row of the first matrix by the 1st column of the second matrix. After multiplying, add the values:\r
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\n" ); document.write( "\n" ); document.write( "1st row, 1st column: \r
\n" ); document.write( "\n" ); document.write( "\"%282%29%2A%284%29%2B%283%29%2A%28-1%29%2B%285%29%2A%28-3%29=8%2B-3%2B-15=-10\"\r
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\n" ); document.write( "\n" ); document.write( " So the element in the 1st row, 1st column of the resulting matrix is \"-10\". Now let's update the matrix:\r
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\n" ); document.write( "\n" ); document.write( "\"%28matrix%282%2C2%2C-10%2Cx%2Cx%2Cx%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Multiply the corresponding entries from the 1st row of the first matrix by the 2nd column of the second matrix. After multiplying, add the values:\r
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\n" ); document.write( "\n" ); document.write( "1st row, 2nd column: \r
\n" ); document.write( "\n" ); document.write( "\"%282%29%2A%282%29%2B%283%29%2A%280%29%2B%285%29%2A%282%29=4%2B0%2B10=14\"\r
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\n" ); document.write( "\n" ); document.write( " So the element in the 1st row, 2nd column of the resulting matrix is \"14\". Now let's update the matrix:\r
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\n" ); document.write( "\n" ); document.write( "\"%28matrix%282%2C2%2C-10%2C14%2Cx%2Cx%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Multiply the corresponding entries from the 2nd row of the first matrix by the 1st column of the second matrix. After multiplying, add the values:\r
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\n" ); document.write( "\n" ); document.write( "2nd row, 1st column: \r
\n" ); document.write( "\n" ); document.write( "\"%280%29%2A%284%29%2B%281%29%2A%28-1%29%2B%282%29%2A%28-3%29=0%2B-1%2B-6=-7\"\r
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\n" ); document.write( "\n" ); document.write( " So the element in the 2nd row, 1st column of the resulting matrix is \"-7\". Now let's update the matrix:\r
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\n" ); document.write( "\n" ); document.write( "\"%28matrix%282%2C2%2C-10%2C14%2C-7%2Cx%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Multiply the corresponding entries from the 2nd row of the first matrix by the 2nd column of the second matrix. After multiplying, add the values:\r
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\n" ); document.write( "\n" ); document.write( "2nd row, 2nd column: \r
\n" ); document.write( "\n" ); document.write( "\"%280%29%2A%282%29%2B%281%29%2A%280%29%2B%282%29%2A%282%29=0%2B0%2B4=4\"\r
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\n" ); document.write( "\n" ); document.write( " So the element in the 2nd row, 2nd column of the resulting matrix is \"4\". Now let's update the matrix:\r
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\n" ); document.write( "\n" ); document.write( "\"%28matrix%282%2C2%2C-10%2C14%2C-7%2C4%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the solution is \"%28matrix%282%2C2%2C-10%2C14%2C-7%2C4%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "In other words,\r
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\n" ); document.write( "\n" ); document.write( "Once again, see this solver for more help with multiplying matrices.\r
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