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1 x3-2x2-0,625=-1 [0;2]
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1 x3-2x2+1,153=1 [0;2]
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1 x3+2x2+1,847=2 [-1;1]
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1 x3+3x2+1,757=2 [-1;1]
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1 x3+3x2+2,375=3 [-2;0]
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1 x3+2x2++2,375=2 [-2;0]
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1 x3-2x2++2,375=-7 [-2;0]
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1 x3-2x2++2,625=3 [0;2]
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1 x3-3x2-+2,875=-2 [0;2]
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1 x3-3x2-+3,125=2 [0;2]
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