factorize:- (1-x^2)(1-y^2)(4xy)
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=(1-x^2)(1-y^2)+4xy
=1(1-y^2)-x^2(1-y^2)+4xy
=1-y^2-x^2+x^2y^2+4xy
=(1+2xy+x^2y^2)-(y^2+x^2-2xy)
=(1+xy)^2-(x-y)^2
={(1+xy)+(x-y)}{(1+xy)-(x-y)}
=(1+x-y+xy)(1-x+y+xy) Ans
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=1(1-y^2)-x^2(1-y^2)+4xy
=1-y^2-x^2+x^2y^2+4xy
=(1+2xy+x^2y^2)-(y^2+x^2-2xy)
=(1+xy)^2-(x-y)^2
={(1+xy)+(x-y)}{(1+xy)-(x-y)}
=(1+x-y+xy)(1-x+y+xy) Ans
if it is useful plzz mark as brainliest !!
Thankyou☺☺
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