√3-x^2＞0
    x^2+4x+4>=0
    0.8184*0.2^x<0.05
    2x-6>1+3-4+5+6+7 x^2<123
    7/3x-11/6(x+3)>(0.03x-0.01)/0.05-(1.3-0.1x)/0.2
    10000*7.18<=10000*(1+4%)*(7.18-x)
    -450+X-690-X*8%/4≥500
    x-3(x-2) >= 4
    x-3(x-2)>=4
    x-3(x-2)>4
    {x-3(x-2)>=4 x-1<(1+2x)/3
    {4(x-1)<3x {5x+3/2>x
     -4114150 + 3000000 + x - 450000 - x * 10 % / 4 >300000
    -4114150+3000000+x-450000-x*10%/4>300000
    5（x+3）>-2（x-6）
    -4x/5+1<8
    x^2(x^2 -9)<0
    ln6+ln2x＞0
    ln（2x+6）＞0
    X^2+4 x+4≥0

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