Solve for x, x_1, x_2
x=-\frac{1}{2}=-0.5\text{, }x_{1}=\frac{1}{2}=0.5\text{, }x_{2}=-1
x=\frac{1}{6}\approx 0.166666667\text{, }x_{1}=\frac{1}{2}=0.5\text{, }x_{2}=-1
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