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D( x )
(3*x)/4 <= 0
(3*x)/4 <= 0
(3*x)/4 <= 0
3/4*x+0 <= 0 // - 0
3/4*x <= 0 // : 3/4
x <= 0/3/4
x <= 0
x in (0:+oo)
5*ln((3*x)/4) = 2 // - 2
5*ln((3*x)/4)-2 = 0
5*ln((3*x)/4)-2 = 0 // + 2
5*ln((3*x)/4) = 2 // : 5
ln((3*x)/4) = 2/5
ln((3*x)/4) = ln(e^(2/5))
(3*x)/4 = e^(2/5)
(3*x)/4-e^(2/5) = 0
3/4*x-e^(2/5) = 0 // + e^(2/5)
3/4*x = e^(2/5) // : 3/4
x = (e^(2/5))/3/4
x = 4/3*e^(2/5)
x = 4/3*e^(2/5)
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