Question 345628
[A]={{{(matrix(2,3,17,2,3,11,4,-9))}}}
[B]={{{(matrix(2,3,10,6,-7,-4,3,0))}}}
[C]={{{(matrix(3,1,-1,2,-2))}}}
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[A-B]={{{(matrix(2,3,7,-4,10,15,1,-9))}}}
[B*C]={{{(matrix(2,1,-35,-35))}}}