Question 177717
4. [2 1]
[3 0] [2 4]
[7 4] [1 6] 
:
{{{(matrix(1,2,2,1))}}}{{{(matrix(2,2,3,0,7,4))}}}={{{(matrix(1,2,-1,-4))}}}{{{matrix(2,2,2,4,1,6)}}}={{{(matrix(1,2,2,20))}}}
:
5. -3 [3 10]
[21 24] 
:
-3{{{(matrix(2,2,3,10,21,24))}}}={{{(matrix(2,2,-9,-30,-63,-72))}}}
:
 [9 15 6]
[-8 2 7] [2 4 0]
[63 -8 1] [-5 0 8]
:
this would be a 1x3 multiplied by a 2x3...which cannot be done PRODUCT UNDEFINED
:
 [3 2] [0 1]
[0 0] [4 0] 
:
{{{(matrix(2,2,3,2,0,0))}}}{{{(matrix(2,2,0,1,4,0))}}}={{{(matrix(2,2,-8,3,0,0))}}}