-a^2b^2+a^2+2ab-b^2

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1 Answer

-a2b2+a2+2ab-b2=

 -a2b2+a2+2ab+b2-2b2=

 -a2b2+(a+b)2-2b2=

(a+b)2-b2(2+a2)=(a+b-b√(2+a2))(a+b+b√(2+a2)).

by Top Rated User (1.2m points)

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