SOLUTION: Please Help! The product of: 2 1 -3 5 and 3 1 -1 2 4 -2 all in brackets, is what? Thank you for your time!

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Question 150294: Please Help!
The product of:
2 1
-3 5
and
3 1 -1
2 4 -2
all in brackets, is what?
Thank you for your time!

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
In brackets, I'm assuming mean matrix notation.
A 2x2 matrix multiplied by a 2x3 matrix will produce a 2x3 matrix.
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The rows of the first matrix are multiplied by the columns of the second matrix in this manner,
a=2%2A3%2B1%2A2=8
b=2%2A1%2B1%2A4=6
c=2%2A%28-1%29%2B1%2A%28-2%29=-4
d=%28-3%29%2A3%2B5%2A2=1
e=%28-3%29%2A1%2B5%2A4=17
f=%28-3%29%2A%28-1%29%2B5%2A%28-2%29=-7
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