Mathematics
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    -120x^2+180x-60>0
    a^2-8a+25>0
    x/(2x-1)>1
    2-k>0 -k-1>0
    0.375x+6.75>4
    2-k>0 1-k>0
    2-k>0 1+k>0
    2-k>0
    72-3t>0.5t^2
    5x-x^2>4
    X^2-x—6<0
    -1≤((x-1)/(2 x-3))≤2
    30x+25(80-x)-2200<0
    0.34x+5880>0.4x+2350
    0<2018-(x-2)*180<180
    x²-2x+5大于0
    x-2/4-x>0
    abs(2x-1)≤2
    7x-2x^2-3≥0
    (m-1)^2-4m^2+8>0

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