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  3.  show that for some ring r, the equality a^2?b^2=

 show that for some ring R, the equality a^2?b^2=(a?b)(a+b) holds ?a,b?R if and only if...

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Advance Math

 show that for some ring R, the equality a^2?b^2=(a?b)(a+b) holds ?a,b?R if and only if R is commutative.

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We want to show that for some ring R the equality ababab holds abR if and only if R is commutative Forward ababababR implies R    See Answer
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