-1/m≥-3
    x^2-4x-28>0
    (a+1)^(-1/5)<(3-2a)^(-1/5)
    3x^2-4x+6>0
    1/(x+2)<=3
    8x－1/x^2＞0
    -m*m+5m-6<0
    m*m-m-6<0
    −7b−4<−7
     4y−7
    -45≥5n
     5n−45≥5n
    5<999999
    5x<4+4x
    5x<4+5x
    99<100
    x-3/x+2<0
    4x×x+4x+1≥3
    4x×x+4x-2<0
    x×x+6x-16<0

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