14-4x²≥x
    x²-4x+3＞0
    x²-16＜0
    x²-5x-6＞0
    4x²-4x-15＞0
    -3x²+5x-4＞0
    x²-3x-10＞0
    13-4x²＞0
    3x²-6x+2＜0
    3x²-6x+2＞0
    x²-3x+4＞0
    -2x²+x≤-3
    x/2≥e^(x-2)
    x/2≥e^(x-2)
    2^(x-1)
    a>1 a<0
    a>1
    -x＞1
    ax＞1
    ax＞1

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