Homework Statement
Find a Cartesian equation relating x and y corresponding to the parametric equations
x = \frac{2t}{t^3+1}
y = \frac{9t^2}{t^3+1}
t \neq -1
Write your answer in the form P(x,y)=0,
where P is a polynomial in x and y such that the coefficient of x^3 is 729.
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