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Let A=[{:(2,-1),(3,4):}],B=[{:(5,2),(7,4...

Let `A=[{:(2,-1),(3,4):}],B=[{:(5,2),(7,4):}],C=[{:(2,5),(3,8):}]`.
Find a matrix D such that CD-AB=O

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The correct Answer is:
`=[{:(-191,-110),(77,44):}]`
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