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D( x )
x^(2/5) <= 0
2*x <= 0
x^(2/5) <= 0
x^(2/5) <= 0
1*x^(2/5) <= 0
1*x^(2/5) <= 0 // : 1
x^(2/5) <= 0/1
x^(2/5) <= 0
x >= 0
x in <0:0>
2*x <= 0
2*x <= 0
2*x+0 <= 0 // - 0
2*x <= 0 // : 2
x <= 0/2
x <= 0
x in (0:+oo)
3*ln(x^(2/5))+ln(2*x) = 0
2/5*3*ln(x)+ln(2*x) = 0
ln(1*x^(6/5))+ln(2*x) = 0
ln(1*2*x*x^(6/5)) = 0
ln(2*x*x^(6/5)) = 0
ln(2*x*x^(6/5)) = ln(e^0)
2*x*x^(6/5) = e^0
2*x*x^(6/5)-e^0 = 0
2*x^(11/5) = 1 // : 2
x^(11/5) = 1/2
x^(11/5) = 1/2 // ^ 5
x^11 = 1/32 // ^ 1/11
x = (1/32)^(1/11)
x = (1/32)^(1/11)
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