144X2 - 2592<0
    -144X2 + 2592>0
    144X2-288 X2 + 2592>0
    2^k>100000
    x+5x+25x+250x+2500x≤5600
    q^4+4q^3<1-q^2
    －4082750＋3000000－450000＋A－A×10%/4≥300000
    x*x+10*x-20<0
    （n-1）/(n+1)<3
    3X^2+4X+5＜0
    3m^2-5m＞-4
    1-x^2<1
    49-(x+9)7+15x>-3
    97％x＋2＜x
    97％x＋2＜x+2
    166*1000000/(1.05*x*1000)<215
    2x-6≥0
    3*x^2*(1-x)+x^3>x
    3*x^2*(1-x)+x^3<10*x^3*(1-x)^2+5*x^4*(1-x)+x^5
    3*x^2*(1-x)+x^3>10*x^3*(1-x)^2+5*x^4*(1-x)+x^5

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