(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I was just wondering if say A is a 2x2 matrix. Is A^2 equivalent to AxA or all the elements of A are squared?

2. Relevant equations

let A and B be 2x2 matrices. is the following true?

(A-B)(A+B) = A^2 - B^2

3. The attempt at a solution

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# Homework Help: Is A^2 equivalent to AxA or all the elements of A are squared?

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