Question

the sum if x² - y² abd y²- x²​

Answer 1

Answer:

x²-y² + y²-x²

1-1

0

Step-by-step explanation:

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Answer 2

hope you like it (x² – 2xy + y²) – (x² + 2xy + y²)

= (x – y)² + (x + y)²

= 2(x² + y²)

= 2x² + 2y²

Now subtract,

(2x² + 2y²) – (x² – 4xy + 4y²)

= 2x² + 2y² – x² + 4xy – 4y²

= x² + 4xy – 2y²