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x in (-oo:+oo)
(-ln(3)/2)*ln(3)-ln(4) = x // - x
(-ln(3)/2)*ln(3)-x-ln(4) = 0
(-(ln(3))^2)/2-x-ln(4) = 0 // - (-(ln(3))^2)/2-ln(4)
-x = -((-(ln(3))^2)/2-ln(4)) // * -1
x = (-(ln(3))^2)/2-ln(4)
x = (-(ln(3))^2)/2-ln(4)
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