(ln(169/(576*x))*x^2)/(ln(1521/(30451*(1-x)))*(1-x)^2)=1
    (ln(15/(32*x))*x^2)/(ln(6480/(30451*(1-x)))*(1-x)^2)=1
    (ln(31372/(142865*x))*x)/(ln(7843/(9975*(1-x)))*(1-x))=1
    (ln(1009/(1440*x))*x)/(ln(3456/(152255*(1-x)))*(1-x))=1
    (ln(49/(384*x))*x)/(ln(294/(30451*(1-x)))*(1-x))=1
    m^2+15^2=113^2
    (ln(169/(576*x))*x)/(ln(1521/(30451*(1-x)))*(1-x))=1
    (ln(15/(32*x))*x)/(ln(6480/(30451*(1-x)))*(1-x))=1
    （26.813+x）×2.95＝53.627+72.24-x
    （26.813+x）×2.95＝53.627+73.24-x
    1+x^2+x^3=0
    x^2=√14/4
    x+x*680/2080=37
    x*680+x*680/2080=37
    hello
    13.24x²-11.24x+3.06=0
    13.24x²-11.24x=3.06
    （x²-1）÷（x²-3x+2）
    x^2+20x-8=0
    1.4229=0.0184x²-0.0831x+1.4246

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