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B
(x−y)(4x+y+2)
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C
(x+y)(4x−y−2)
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D
(xy+2)
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Solution
The correct option is C(x−y)(4x+y+2) On putting X=Y we observed that expression turns out to zero which means (x−y) is one factor 4x2−y2+2x−2y−3xy it can be written as follow 4x(x−y)+y(x−y)+2(x−y) (x−y)(4x+y+2)