Solve for x
x=\frac{1-X^{2}}{2}
Solve for X (complex solution)
X=-\sqrt{1-2x}
X=\sqrt{1-2x}
Solve for X
X=\sqrt{1-2x}
X=-\sqrt{1-2x}\text{, }x\leq \frac{1}{2}
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2x-1=-X^{2}
Subtract X^{2} from both sides. Anything subtracted from zero gives its negation.
2x=-X^{2}+1
Add 1 to both sides.
2x=1-X^{2}
The equation is in standard form.
\frac{2x}{2}=\frac{1-X^{2}}{2}
Divide both sides by 2.
x=\frac{1-X^{2}}{2}
Dividing by 2 undoes the multiplication by 2.
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