5X＋10＝30
    569985-330.787*（900+273.15）+8.314*（900+273.15）ln(([(100/x)-1]^2)*0.01^2 )= 0
    17x^(2)-32x+15＝0
    569985-330.787*（900+273.15）+8.314*（900+273.15）ln(([(100/x)-1]^2)*0.1^2 )= 0
    569985-330.787*（900+273.15）+8.314*（900+273.15）ln(([(100/x)-1]^2)*1^2 )= 0
    2.282x^(2)-0.312=0
    569985-330.787*（800+273.15）+8.314*（800+273.15）ln(([(100/x)-1]^2)*1^2 )= 0
    569985-330.787*（800+273.15）+8.314*（800+273.15）ln(([(100/x)-1]^2)*0.1^2 )= 0
    （1000-100x)(8+2x)=10000
    569985-330.787*（800+273.15）+8.314*（800+273.15）ln(([(100/x)-1]^2)*0.01^2 )= 0
    569985-330.787*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^2)*0.01^2 )= 0
    569985-330.787*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^2)*0.1^2 )= 0
    569985-330.787*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^2)*1^2 )= 0
    x^3+2x-5=0
    1.61464x^(2)-1=0
    （6q＋2）（q－2）
    -235805-100.961*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^9)*1^1 )= 0
    -235805-100.961*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^9)*0.1^1 )= 0
    -235805-100.961*（700+273.15）+8.314*（700+273.15）ln(([(100/x)-1]^9)*0.01^1 )= 0
    6q^(2)-10q--4＝0

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