-2.8x^56+2.8x^51+0.3x^53-0.3+41.7x^16-41.7x^15≥0
    3x*x-2x-2<0
    x^10*747-x^9*834≥-87
    x^10-x^9 ≥-87
    x^10-x^9≥-1
    747x^10-834x^9≥-87
    87-834x^9 ≥0
    747x^10+87-834x^9 ≥0
    747x^10+87≥0
    747x^10-834x^9+87 ≤0
    747x^10-834x^9+87 ≥0
    921x^10-834x^9+87≥0
    m-1<(3/2)m
    a+1>0
    a>0
    3（7-x）＜2（x-1）
    1/x*(ln(1/1-x))<2
    lnx＞1/x
    m(m+2)>-1
    -5x^2+3x+14≤0

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