Mathematics
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    x^2-5x+6>2x-5
    -abs2x-1>-3
    abs2x-3>1
    -x^2+2x<0
    absx-1>3
    (x-1)(2-x)>0
    x^2-2x+1>0
    (x+2)(x-1)<0
    2a-3≥(a-1)(a-1)
    x²-2x+3>0
    x(3-x)<x(x+2)-1
    -2x²+3x+2>0
    (3x-1)/(2-x)>=1
    8/3k≥16
    x+1/-6x+3≤0
    m^2-4m-28<0
    m2-4m-28<0
    64<=420+6/a<=100
    x^2-4x-12<0
    3a+4<0

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