(m-3)^2-4*0.5+-m+2>0
    2x²+3x-5＜0
    a*a>1
    2x²+5x-5＜0
    x^x>8
    5x>8
    4m^2+4m-23<0
    -7y^2-2y+1>=0
    (-2x-4)^(1/2)
    (-x-1)^(1/2)
    2^x>x^2
    a^2-4a+4＞0
    （4-x）除以（2x+3）≥1
    （x+1）（x-5）（x-2）（x-5）<0
    a^2+16/9-8/3*a <20/9
    m+1<-m-1
    -3
    -3<-m-1
    -3<-m-1
    -3

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