factorise with using suitable identity
abhishek62632911:
Its is only ques
I have already expressed as product sss
see
Ok i see thanku
ok ..use( a+b)(a-b)
Plz give full answer in written form
its only answer
1-2ab-a^2 -b^2. = 1-(a+b)^2 = (1-(a+b))(1+(a+b))
Ok
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