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(2*9*(9*10)^2*(1.6*10^-19)^4*10^-31*pi^2)/((6.62*10^-34)^2)
1*x^3-(6*x^2)-(40*x)+0 = 0;x
x
(2*9*(9*10)^2*(1.6*10^-19)^4*10^-31*pi^2)/((6.62*10^-34)^2)
ln(x)
2*x-(3*x)+5/4 = (-1/4)*x-1;x
x
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