document.write( "Question 158789This question is from textbook algebra 2
\n" ); document.write( ": hello, thanks for helping me.....i'm on chapter 4.2 and i can't figure out how to multiply the matrices. I need to know the order in which i can multiply each row and column.
\n" ); document.write( "[5 3] [4 2 -1]
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Algebra.Com's Answer #116950 by scott8148(6628)\"\" \"About 
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multiplication is row times column
\n" ); document.write( "__ the rows of the 1st matrix must have the same number of elements as the columns of the 2nd matrix\r
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\n" ); document.write( "\n" ); document.write( "multiply the pairs of elements and add the products to find the element in the product matrix
\n" ); document.write( "__ row m multiplied by column n will give element m,n in the product matrix\r
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\n" ); document.write( "\n" ); document.write( "1,1 __ 5*4+3*0 __ 20
\n" ); document.write( "1,2 __ 5*2+3*1 __ 13
\n" ); document.write( "1,3 __ 5*(-1)+3*3 __ 4
\n" ); document.write( "2,1 __ 0*4+1*0 __ 0
\n" ); document.write( "2,2 __ 0*2+1*1 __ 1
\n" ); document.write( "2,3 __ 0*(-1)+1*3 __ 3\r
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\n" ); document.write( "\n" ); document.write( "[20 13 4]
\n" ); document.write( "[0 1 3] \n" ); document.write( "
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