x^2-3x-10＞0
    x²×x²＋4x－4＞0
    x²×x²＋4x－4＞0
    log（2，x）＜1-x
    h >(2*34%2393848%-88386376437%34444-4989329*83929893298^2)
    h >(2*34%2393848%-88386376437%34444-4989329*83929893298^2)
    h>(2*34%2393848%-88386376437%34444-4989329*83929893298^2)
    2-4/(x^3)>0
    ((1005*x-88.75*x^2)*0.58)^2+3*((1005*x-167.5*x)*0.378)^2≤(5.76*1.1*265*1000)^2
    1005*x-167.5/2*x^2≤2976
    ((1005*x-88.75*x^2)*0.58)^2+3*((1005*x-167.5*x)*0.378)^2≤5.76*1.1*265*1000
    2-4/(x^3)>0
    2=4/(x^3)>0
    15x×0.49-0.15×15x>15
    10.5x×0.49-0.15×10.5x>10.5
    5x×0.56-0.15×5x>5
    -12500+x-（50000+x）*1%>=5000
    1.96*0.4*sqrt(1/(x-1))+1/(2*x)<=0.01
    e^x+x^2+2x<0
    x²+6x+10＞0

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