√x<5 x＾x>2
    √x<5 x＾x>2
    √x<5
    x(x-3)>=0
    15－0.5x≥0.2x
    500x－10x²＜6000
    6/x≥x+1
    3x-1>4-10x
    3x-1>2(2-5x)
    0.2<0.002x
    (2m+6)/(m-2)＜0
    x√2-1
    X-3/X-2<0
    6X^2-X-1/X^2+1<0
    (x+1)(3x+1)<=0
    x^3<9
    x3<9
    3x+4≥7/x
    3y+2.5(2600-y)≤7000
    x

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