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x=-\frac{\sqrt{105}}{6}-\frac{3}{2}\approx -3.207825128
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x≔-\frac{\sqrt{105}}{6}-\frac{3}{2}
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x=-\frac{3}{2}-\frac{1}{6}\sqrt{105}
Divide each term of -9-\sqrt{105} by 6 to get -\frac{3}{2}-\frac{1}{6}\sqrt{105}.
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