X - Y^2 = 1
- Y^2 = - X + 1
Y^2 = X - 1
Y = (+/-) sqrt(X - 1)
now, X is represented as a function of Y. Function values are generally Y values.
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No.
(x4 + y4)/(x + y) = Quotient = x3 - x2y + xy2 - y3 Remainder = - 2y4/(x+y) So, x3 - x2y + xy2 - y3 - 2y4/(x+y)
-5xy2 + 12xy2 = (-5 + 12)xy2 = 7xy2
x3+xy-x2y2=x(x2+y-xy2)