Solve for k
k=-2\left(x-2\right)\left(x-1\right)
x\neq 2
Solve for x (complex solution)
\left\{\begin{matrix}\\x=\frac{-\sqrt{1-2k}+3}{2}\text{, }&\text{unconditionally}\\x=\frac{\sqrt{1-2k}+3}{2}\text{, }&k\neq 0\end{matrix}\right.
Solve for x
\left\{\begin{matrix}x=\frac{-\sqrt{1-2k}+3}{2}\text{, }&k\leq \frac{1}{2}\\x=\frac{\sqrt{1-2k}+3}{2}\text{, }&k\neq 0\text{ and }k\leq \frac{1}{2}\end{matrix}\right.
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k+2\left(x-2\right)\left(-1\right)=\left(-2x+4\right)x
Multiply both sides of the equation by 2\left(x-2\right).
k-2\left(x-2\right)=\left(-2x+4\right)x
Multiply 2 and -1 to get -2.
k-2x+4=\left(-2x+4\right)x
Use the distributive property to multiply -2 by x-2.
k-2x+4=-2x^{2}+4x
Use the distributive property to multiply -2x+4 by x.
k+4=-2x^{2}+4x+2x
Add 2x to both sides.
k+4=-2x^{2}+6x
Combine 4x and 2x to get 6x.
k=-2x^{2}+6x-4
Subtract 4 from both sides.
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Limits
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