Show that a 2 - b 2 =(a+ b)(a - b) for all a and bin a

Question:

Show that a2 - b2 =(a+ b)(a - b) for all a and bin a ring R if and only if R is commutative.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: