You can put this solution on YOUR website! Perform the indicated operation and express answer in simplest form:
[x^2 - (y - 1)^2] / [(y - 1)^2 - x^2]
---------------------
[x^2 - (y - 1)^2] /-[x^2 - (y - 1)^2]
---------------
= 1/-1
= -1
==============
Cheers,
Stan H.