（22140-230X）/310>1
    5x-1>3（x+1）
    1/（x-2）≤(x-2)
    1/（x-2）≤x-2
    5x-13=6x
    x+0.45*sqrt(0.9+x)<0.7269
    （2*x^2+x-3）/(x^2-3*x+2)≤1
    2x^(2)+5x+2>0
    2x^(2)+0x+2>0
    2x^(2)+4x+2>0
    x^2 - 3x - 4 >= 0
    6-5m≤1
    （a-1)(a-1)<4
    -2*x*x+3*x+4>0
    -x*x+2*x+1>0
    x*x+3*x-4>0
    4-x*x<0
    3*x*x-4<0
    3*x*x-2*x+1<0
    x*x-8x+16<0

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