Question

4 – x² - y² – 2xy is equal to​

Answer 1

Answer:

The answer is: (2-x+y) (2-x-y)

Step-by-step explanation:

4 - x² - y² - 2xy

4 -(x² + y² + 2xy)

[Using identity, (a+b)² = a²+b²+2ab]

4 - (x+y)²

2² - (x+y)²

[Using identity,a²-b² = (a+b) (a-b) ]

(2-x+y) (2-x-y)

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Answer 2

Answer:

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