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D( x )
2*x+4 <= 0
3*x^2-1 <= 0
ln(2*x+4) = 0
2*x+4 <= 0
2*x+4 <= 0
2*x+4 <= 0 // - 4
2*x <= -4 // : 2
x <= -4/2
x <= -2
3*x^2-1 <= 0
3*x^2-1 <= 0
3*x^2 <= 1
3*x^2 <= 1 // : 3
x^2 <= 1/3
x^2 <= 1/3 // ^ 1/2
abs(x) <= (1/3)^(1/2)
x in <-(1/3)^(1/2):(1/3)^(1/2)>
ln(2*x+4) = 0
ln(2*x+4) = 0
ln(2*x+4) = ln(e^0)
2*x+4 = e^0
2*x-e^0+4 = 0
2*x+3 = 0 // - 3
2*x = -3 // : 2
x = -3/2
x in (-2:-3/2) U (-3/2:-(1/3)^(1/2)) U ((1/3)^(1/2):+oo)
ln(3*x^2-1)/ln(2*x+4) = 0
ln(3*x^2-1)/ln(2*x+4) = 0 // * ln(2*x+4)
ln(3*x^2-1) = 0
ln(3*x^2-1) = ln(e^0)
3*x^2-1 = e^0
3*x^2-e^0-1 = 0
3*x^2 = 2 // : 3
x^2 = 2/3
x^2 = 2/3 // ^ 1/2
abs(x) = (2/3)^(1/2)
x = (2/3)^(1/2) or x = -(2/3)^(1/2)
x in { (2/3)^(1/2), -(2/3)^(1/2) }
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