Mathematics
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    X^-X-6 >0
    5X-3X^-2>0
    X*X<9
    X*X>6+X
    abs(x-1)+abs(x-3)<=3
    X*X-X-6>0
    abs(a+1)>abs(3-2a)
    3x+5>-8+6x-2
    70*(3x+10)*(-96x+3670)>0
    70*(3x+10)>0
    (1-x)/(x+1)<=0
    (2-x)/36*144+x<0
    (2-x)/36*144+x>0
    (2-x)/36*9+x>2.43
    -1/6(x-2)^2+5/3>1.64
    2>3x^2+2x>1
    2x+60/x≤26
    100-2(x-30)≥80
    lg3>X^3
    (-2)^2-4*(2k-1)<=0

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