Question

Factories x²-4x-4y-y²

Answer 1

x2-4x-4y-y2=4x3-4y3

Answer 2

hey your ans is here
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x2-4x-4y-y2
(x2-y2)-(4x-4y)
(x+y)(x-y)-4(x+y)
(x+y)[(x-y)-4]
(x+y)(x-y-4)
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