Posted by Sherry on Thursday, February 17, 2011 at 12:50pm.
Please help me?
ln(x+1)ln(x2)=ln(5)
1. Solve equation by setting up algebraically.
2. Use appropriate properties of Logarithm to reduce the number of logarithmic terms to only one.
3. Solve logarithmic equation.

calculus  Henry, Saturday, February 19, 2011 at 2:20pm
ln(x + 1)  ln(x + 2) = ln5,
2. ln((x + 1) / (x + 2))) = ln5.
3. ln((x + 1) / (x + 2)) = 1.6094,
(x + 1) / (x + 2) = e^1.6094,
(x + 1) / (x + 2) = 5,
Cross multiply:
5X + 10 = X + 1,
5X  X = 1  10,
4X =  9,
X = 2 1/4 = 9/4.

calculus  Henry, Saturday, February 19, 2011 at 2:53pm
CORRECTION:I copied the problem wrong.
ln(x + 1)  ln(x  2) = ln5.
2. ln((x + 1) / (x  2)) = ln5.
3. ln((x + 1) / (x  2)) = 1.6094,
(x + 1) / (x  2) = e^1.6094,
(x + 1) / (x  2) = 5,
Cross multiply:
5X  10 = X + 1,
5X  X = 1 + 10,
4X = 11,
X = 2 3/4 = 11/4.

calculus  Anonymous, Sunday, June 5, 2011 at 9:16pm
3lnx+2lny4lnz
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