2(lnx)² + lnx-1 = 0
First let y = ln x be a new variable, , and solve the polynomial
2 y^2 + y - 1 = 0
2(y +1)(y - 1/2) = 0
y = -1 or +1/2
Thus x = e^y
and x= 1/e = 0.3679.. OR
e^0.5 = 1.6487..
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i have write the equation as a single logarithm 2 lnx-3 lny+1/2 lnz
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