3-4 Points) Let R be an arbitrary ring and z, y R. Show that x2-y- (x...

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Question

3-4 Points) Let R be an arbitrary ring and z, y R. Show that x2-y- (x +y)(x -y) if and only if R is a commutative ring.

math algebra

Answer 1

Answer #1

Sol: Let Rbe ahing and ,yeR Cancelldi。。 Conu , aSume thet Ri Commu ズ仁

Answer 2

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