SOLUTION: ln x^-3 - (ln x)^2 = -28
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Question 684903: ln x^-3 - (ln x)^2 = -28
Found 2 solutions by Alan3354, MathTherapy:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
ln x^-3 - (ln x)^2 = -28
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If you mean ln(x^-3) and (ln(x))^2
-3ln(x) - (ln x)^2 = -28
(ln(x))^2 + 3ln(x) - 28 = 0
sub u for ln(x)
(u + 7)*(u - 4) = 0
-------
ln(x) = -7
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ln(x) = 4
Answer by MathTherapy(10555) (Show Source): You can put this solution on YOUR website!
ln x^-3 - (ln x)^2 = -28
You can do the check!!
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