Find the number of ordered pairs $(x,y)$ of real numbers that satisfy $ (x + y)^2 = (x + 1)(y - 1)$.
Question:
Find the number of ordered pairs $(x,y)$ of real numbers that satisfy $ (x + y)^2 = (x + 1)(y - 1)$.
Answer:
Let's think step by step.

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Find the number of ordered pairs $(x,y)$ of real numbers that satisfy $ (x + y)^2 = (x + 1)(y - 1)$.
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