Question

Factorise the following :
-y²-x²-2xy​

Answer 1

Step-by-step explanation:

Question:-

Factorise :- -y²-x²-2xy

Answer:-

$⇒ - {y}^{2} - {x}^{2} - 2xy \\ \\ ⇒-2xy- {x}^{2} - {y}^{2} \\ \\ ⇒-2(x+y) \: \\ \\ [ Since \: by \: multiplying, \: the \: above \\ \: question \: must \: come \: as \: answer]$

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