Question

(-x²+ 2xy+ y² + 2) + (x² - 2xy + y² -2 ) responda com o calculo blz

Answer 1

$- {x}^{2} + 2xy + {y}^{2} + 2 + {x}^{2} - 2xy - 2 = \\ {y}^{2} = 0 \\ y = \sqrt{0} \\ y = 0$

Answer 2

(-x²+ 2xy+ y² + 2) + (x² - 2xy + y² -2 )

- x² + 2xy + y² + 2 + x² - 2xy + y² - 2

- x² + x² + 2xy - 2xy + y² + y² + 2 - 2

0 + 0 + 2y² + 0

2y²