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3\left(x-2x^{2}-2\right)
Factor out 3. Polynomial x-2x^{2}-2 is not factored since it does not have any rational roots.
-6x^{2}+3x-6=0
Quadratic polynomial can be factored using the transformation ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right), where x_{1} and x_{2} are the solutions of the quadratic equation ax^{2}+bx+c=0.
x=\frac{-3±\sqrt{3^{2}-4\left(-6\right)\left(-6\right)}}{2\left(-6\right)}
All equations of the form ax^{2}+bx+c=0 can be solved using the quadratic formula: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.
x=\frac{-3±\sqrt{9-4\left(-6\right)\left(-6\right)}}{2\left(-6\right)}
Square 3.
x=\frac{-3±\sqrt{9+24\left(-6\right)}}{2\left(-6\right)}
Multiply -4 times -6.
x=\frac{-3±\sqrt{9-144}}{2\left(-6\right)}
Multiply 24 times -6.
x=\frac{-3±\sqrt{-135}}{2\left(-6\right)}
Add 9 to -144.
-6x^{2}+3x-6
Since the square root of a negative number is not defined in the real field, there are no solutions. Quadratic polynomial cannot be factored.