Solve for x
x=y^{2}+91.8
y\geq 0
Solve for x (complex solution)
x=y^{2}+91.8
arg(y)<\pi \text{ or }y=0
Solve for y
y=\sqrt{x-91.8}
x\geq 91.8
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\sqrt{x-91.8}=y
Swap sides so that all variable terms are on the left hand side.
x-91.8=y^{2}
Square both sides of the equation.
x-91.8-\left(-91.8\right)=y^{2}-\left(-91.8\right)
Add 91.8 to both sides of the equation.
x=y^{2}-\left(-91.8\right)
Subtracting -91.8 from itself leaves 0.
x=y^{2}+91.8
Subtract -91.8 from y^{2}.
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