（x+3)(x-1)(x-1)(x-2)(x-2)(x-2)(x-5)(x-5)(x-5)(x-5)<0
    (x+3)(x−2)(x-2)(x-2)＜0
    -21.5+X-X×0.025-30×0.025≥50
    m^2＜1
    x^2-7x-8<0
    2-(2/x)-lnx<0
    x<2 x>4 x>-3
    2/(3-x)<1
    (x-1)^2-(x-1)*(x+1)+3*(x+1)>0
    abs(x+3)-abs(x-2)>=3
    abs(x)>abs(x+5)
    abs(x-4)>1
    36-(5/3)*(12/5+6y/5)<40
    19+(19/4)*(4x/3-36/5)<95/9
    x^2－3x<0
    x-1000>0.05x
    -4a＞4
    1000*(0.99^n)≤0
    （（3-x）/（x^2 -1））>=0
    -x^3 + 3x^2 +x -3 >= 0

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