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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(-600/x)^2 = 0.6/x // - 0.6/x
(-600/x)^2-(0.6/x) = 0
(-600/x)^2-0.6*x^-1 = 0
360000*x^-2-0.6*x^-1 = 0
t_1 = x^-1
360000*t_1^2-0.6*t_1^1 = 0
360000*t_1^2-0.6*t_1 = 0
DELTA = (-0.6)^2-(0*4*360000)
DELTA = 0.6^2
DELTA = 0.36
DELTA > 0
t_1 = ((0.6^2)^(1/2)+0.6)/(2*360000) or t_1 = (0.6-(0.6^2)^(1/2))/(2*360000)
t_1 = 0.00000167 or t_1 = 0
t_1 = 0
x^-1+0 = 0
x^-1 = 0
1*x^-1 = 0 // : 1
x^-1 = 0
x należy do O
t_1 = 0.00000167
x^-1-0.00000167 = 0
1*x^-1 = 0.00000167 // : 1
x^-1 = 0.00000167
-1 < 0
1/(x^1) = 0.00000167 // * x^1
1 = 0.00000167*x^1 // : 0.00000167
598802.39520958 = x^1
x = 598802.39520958
x = 598802.39520958
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