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a^2 -b^2 = (a+b)(a-b)



All of you know that a2 - b2 = (a+b)(a-b)

I know only two method to prove it.

a2 - b2 a2 - b2

a2 - b2 + ab - ab a2 - b2 + 2ab -2ab -2b2

a2 + ab - ab - b2 (a+b)2 - 2b(a+b)

a(a+b) - b(a+b) (a+b)(a+b) - 2b(a+b)

(a-b)(a+b) (a+b)(a+b-2b)


Apart form these two method are there any other method to prove it.

Edited by Utkrisht123
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