SOLUTION: What is the solution to the equation ln( x+1) - ln(x) = 2

Algebra.Com
Question 235930: What is the solution to the equation ln( x+1) - ln(x) = 2
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
What is the solution to the equation ln( x+1) - ln(x) = 2
-----------------------------------
ln[(x+1)/x] = 2
(x+1)x = e^2
x^2 + x - e^2 = 0
-----
x = [-1 +- sqrt(1 -4*-e^2)]/2
-----
x = [ -1 +- sqrt(1+4e^2)]/2
---
x = (-1/2) + (1/2)sqrt(1+4e^2) or x = (-1/2)-(1/2)sqrt(1+4e^2)
==================================================================
Cheers,
Stan H.

RELATED QUESTIONS

what is the solution to this problem ln(x-9)-ln(x+1)=ln(x-6)-ln(x+5)... (answered by lwsshak3)
what is the solution to ln + ln... (answered by stanbon)
Solve the equation: ln(x^2 + 1) - ln(x - 1) = 1 + ln (x +... (answered by josmiceli,stanbon)
Solve the logarithmic equation algebraically. Approximate the result to three decimal... (answered by robertb)
Solve the logarithmic equation algebraically. Approximate the result to three decimal... (answered by lwsshak3)
What is ln(4)-ln(x)=ln(3)+ln(x)(please supply steps to... (answered by stanbon)
Solve the logarithmic or exponential equation. ln(x +1) − ln(x − 2) = ln... (answered by jim_thompson5910)
The exact solution for 12^sqrt of x =35 a. x= ln(35)/ln(12)^2 b. x= ln(12)/ln(35)^2... (answered by solver91311)
Solve the logarithmic equation. be sure to reject the value of x that is not in the... (answered by nerdybill)