factorise: (x+y^2-4xy
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Answer:
(x+y)
2
−4xy
It can be written as (x+y)
2
−4xy=(x+y)
2
−(2
xy
)
2
=(x+y−2
xy
)(x+y+2
xy
)
Thus factors are(x+y−2
xy
),(x+y+2
xy
)
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