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If A=[(1, 2, 0 ),(3,-4, 5),( 0,-1, 3)] ...

If `A=[(1, 2, 0 ),(3,-4, 5),( 0,-1, 3)]` , compute `A^2-4A+3I_3` .

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Given that,
`A=[(1,2, 0), (3,-4, 5),( 0,-1, 3)]`
we have to find,
`A^2-4A+3I_3`
so,`A^2=[(1,2, 0), (3,-4, 5),( 0,-1, 3)]xx[(1,2, 0), (3,-4, 5),( 0,-1, 3)]`
`=[(1+6,2-8,10),(3-12,6+16-5,-20+15),(-3,4-3,-5+9)]`
`=[(7,-6,10),(-9,17,-5),(-3,1,4)]`
`A^2-4A+3I_3`
...
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