Math, asked by wajahatsaad, 2 months ago

expand the following
(x - y)2 – (x + y)2​

Answers

Answered by BoldStyle
19

( x - y ) ² - ( x + y ) ²

Using the identities

( a - b ) ² = - 2ab +

( a + b ) ² = + 2ab +

( - 2xy + ) - ( + 2xy + )

- 2xy + - - 2xy -

- 2xy - 2xy

Answer - 4xy

Answered by dk1572005
3

Answer:

-4xy

Step-by-step explanation:

(x-y)²-(x+y)²

By using identity

x²-2xy+y²-(x²+2xy+y²)

x²-2xy+y²-x²-2xy-y²

x²-x²+y²-y²-2xy-2xy

-4xy

correct explanation

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