Mathematics
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    x^2-2x+1>0
    (x-2)/2-1
    
3x^2-10x+3>0
    (x+1)/2>=(2x-1)/3
    2x^2-3x-2<0
    X∧2+1/3X>0
    1/2x>-3
    -1/2x>-3
    x^2-x-2≤0
    x^2-5x-6≥0
    2x∧2-3x+1<0
    3x^2-11x+6/x-2≤0
    -55+A-A*4%/4≥0
    -500000+13*x>0
    -500000+13*x≥0
    -500000+13x≥0
    -500000+13k≥0
    1000a+1800(20-a)≤26400 500a+900(20-a)≥12000
    12a+10(8-a)≤89 200a+160(8-a)≥1380
    3(x+2)>4x+2 1/2x≥1/3(x-1)

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