Solve for x (complex solution)
x=-\frac{\sqrt{4\left(1±z\right)-y^{2}}}{2}
x=\frac{\sqrt{4\left(1±z\right)-y^{2}}}{2}
Solve for y (complex solution)
y=-2\sqrt{1±z-x^{2}}
y=2\sqrt{1±z-x^{2}}
Solve for x
x=\frac{\sqrt{4\left(1±z\right)-y^{2}}}{2}
x=-\frac{\sqrt{4\left(1±z\right)-y^{2}}}{2}\text{, }4\left(1±z\right)\geq 0\text{ and }\left(|y|\leq 2\sqrt{1±z}\text{ or }1±z<0\right)
Solve for y
y=2\sqrt{1±z-x^{2}}
y=-2\sqrt{1±z-x^{2}}\text{, }1±z\geq 0\text{ and }|x|\leq \sqrt{1±z}
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