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Question
Given `A = [(4, 1), (2,3)] and B = [(1, 0),(-2, 1)]` Find `A^2 - AB + 2B`
Solution
`A^2 - AB + 2B`
= `[(18, 7),(14, 11)] - [(2, 1),(-4, 3)] + 2[(1, 0),(-1, 1)]`
`= [(16, 6),(18, 8)] + [(2, 0),(-4, 2)]`
`= [(18, 6),(14, 10)]`
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