Question

- 1 - 2xy + ( x square + y square) .​

Answer 1

Answer:

so is uestion ma akhir karna kya hai please batao

Answer 2

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$1 - 2xy - (x {}^{2} + y {}^{2} )$

$= 1 - (x {}^{2} + 2xy \: + y {}^{2})$

$= 1 - (x + y) {}^{2}$

$= { 1 -(x+y) }{1+(x+y)} \\ - \: difference \: of \: two \: square$

$= \: - 1 - 2xy + \\ ( x square + y square) .$