Question

x²-2(x+y)-y² solve this.​

Answer 1

x² - 2(x + y) -y²

= (x² - y²) - 2(x + y)

= (x + y)(x -y) - 2x - 2y (Since x² - y² ≡ (x + y)(x - y) )

Answer 2

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

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

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

hope it helps you