Respuesta :

Nepalieducation

Answer:

Step-by-step explanation:

[tex]x ^ 2 - y ^ 2 + 2x + 2y = 0\\\\(x-y)(x+y)-2(x-y)=0\\\\(x-y)(x+y-2)=0\\\\[/tex]

x-y=0 ∨ x+y-2=0

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