Solve for x (complex solution)
\left\{\begin{matrix}x=-\frac{y^{2}}{2y+1}\text{, }&y\neq -\frac{1}{2}\text{ and }arg(x+y)<\pi \\x=-y\text{, }&y=-1\text{ or }y=0\end{matrix}\right.
Solve for y (complex solution)
y=-\left(-\sqrt{x\left(x-1\right)}+x\right)
Solve for x
x=-\frac{y^{2}}{2y+1}
y\geq 0\text{ or }\left(y\geq -1\text{ and }y<-\frac{1}{2}\right)
Solve for y
y=-\left(-\sqrt{x\left(x-1\right)}+x\right)
x\geq 1\text{ or }x\leq 0
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