a2-b2=(a+b) (a-b) proof this in hindi
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a2 - b2
= a2 - ab + ab - b2
= a(a-b) + b(a-b)
= (a-b)(a+b)
Proved.
= a2 - ab + ab - b2
= a(a-b) + b(a-b)
= (a-b)(a+b)
Proved.
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