Mathematics
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    x^(2)-7x+6≥0
    3x^(2)-x<0
    x^(2)-12x+20<0
    -x^(2)+2x-3>0
    x^(2)-5x+6>0
    9x^(2)-6x+1>0
    (x+7)(x-6)<0
    (x+7)(x-2)>0
    1-(1-x)0.1>x^0.1
    1-(1-x)0.5>x^0.5
    ln(1-x) <0-x
    ln(1-x)<-x
    -3a^(2)+76<0
    x^2-4x+5>0
    (2x+20)^(2)-4(1/2x+1/2)(2x+76)
    (2x+20)^(2)
    9x^2-6x+1>0
    (2x+20
    3x^2+5x-2>0
    (k+1)(k+1)-8(k+3)>0

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