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Let A and B be square matrices of the...

Let `A` and `B` be square matrices of the same order. Does `(A+B)^2=A^2+2A B+B^2` hold? If not, why?

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Verified by Experts

Here it is not mentioned that `AB = BA`.
So, `AB !=BA`
`(A+B)^2!=A^2+2A B+B^2`
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