Question 205603
Perform the indicated operation and express answer in simplest form: 
[x^2 - (y - 1)^2] / [(y - 1)^2 - x^2]

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[x^2 - (y - 1)^2] /-[x^2 - (y - 1)^2]

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= 1/-1

= -1
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Cheers,
Stan H.