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Question 158789This question is from textbook algebra 2
: 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.
[5 3] [4 2 -1]
[0 1] [0 1 3]
This question is from textbook algebra 2
Answer by scott8148(6628)   (Show Source):
You can put this solution on YOUR website! multiplication is row times column
__ the rows of the 1st matrix must have the same number of elements as the columns of the 2nd matrix
multiply the pairs of elements and add the products to find the element in the product matrix
__ row m multiplied by column n will give element m,n in the product matrix
1,1 __ 5*4+3*0 __ 20
1,2 __ 5*2+3*1 __ 13
1,3 __ 5*(-1)+3*3 __ 4
2,1 __ 0*4+1*0 __ 0
2,2 __ 0*2+1*1 __ 1
2,3 __ 0*(-1)+1*3 __ 3
[20 13 4]
[0 1 3]
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