x>ln(1+x)
    (x-1)^3>6x
    x＾2+1>=0
    2*x^3+x^2+2*x+1＜0
    4t＜e＾（2t）
    4-7x<41+3x
    (5y)/4≥(y+2)/2
    165y^2+60y-23＜0
    10y^2+95y-82＜0
    0.2y^2+95y-82＜0
    2y^2+95y-82＜0
    2y^2+95y-82＞0
    190y^2+75y-3＜0
    190y^2-105y+167＜0
    100x-15x^2＞82
    100x-3x^2＞82
    20x-3x^2＞164
    175x^2+90x-3＜0
    175x^2+90x-13＜0
    x-1/2<1

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