(x-2)^3(x-3)(x+5)>0
    lnx-x
    x^2+44x>75
    1x-11>0
    x^2-4x-12<0
    x^2-6x+8<0
    2114.08<18.4*10^3*1.58*x*(1.193-x/2)
    2114.08<18.4*10^3*[1.58*x*(1.193-x/2)+1.4*0.11*(1.1-0.11/2)]
    2114.08<18.4*10^3*1.58*x*(1.195-x/2)
    2114.08<18.4*10^3*[1.58*x*(1.1-x/2)+1.4*0.11*(1.1-0.11/2)]
    -5<=5x
    (x-1)/2+2>=-x
    (1/5)x-2<=4-(2/5)x
    2(x-4)<=x-6
    2114.08<18.4*10^3*0.18*x*(1.195-x/2)
    2114.08<18.4*10^3*[0.18x*(1.1-x/2)+1.4*0.11*(1.1-0.11/2)]
    2114.08<18.4*10^3*[0.18x*(1.1-x/2)+1.4*0.11*1.14]
    2114.08*10^6 <18.4*180*x*(1100-x/2)
    2114.08*10^6<18.4*18*x*(110-x/2)
    2114.08*10^3<18.4*18*x*(110-x/2)

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