Factorise:1 – 2xy – (x2 + y2) – McqOptions

MCQOPTIONS

1.	Factorise:1 – 2xy – (x2 + y2)
A.	(1 + × - y)(1 + × + y)
B.	(1 + × - y)(1 – × + y)
C.	(1 + × + y)(1 – × + y)
D.	(1 + × + y) (1 – × – y)
Answer» E.

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