sqrt((5-2x)＞x-1
    sqrt((5-2x)＞x-1
    (x-1)(x+2)>=(x-2)(2x+1)
    (x+2)(x-3)<6
    x^2+x-6>0
    x^2-5
    x^2>3x
    4x-2>3
    -2X²+X≥3
    3-2/3X≤-1
    2<3
    5k+7068>65k-5408
    a^2+4a<0
    2lnx+x大于1
    3x-4/x+1>0
    5-8xx+3/2
    -6x²+3＞0
    2+x／3x-2＞1
    0.25>(x+3.5)^2
    -x^2-7x-12>0

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