Examples of Math Problems

examples of math problems that I like, solved, etc.

Thursday, April 3, 2014

Solve: ln(x+1)-ln(x-2)=ln(2)

ln%28x%2B1%29-ln%28x-2%29=ln%282%29
ln%28%28x%2B1%29%2F%28x-2%29%29=ln%282%29
e%5Eln%28%28x%2B1%29%2F%28x-2%29%29+=+e%5Eln%282%29
%28x%2B1%29%2F%28x-2%29=2
%28x%2B1%29%2F%28x-2%29-2%28x-2%29%2F%28x-2%29=0
%28x%2B1-2x%2B4%29%2F%28x-2%29=0
5-x=0
x=5

Posted by Unknown at 12:58 PM
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Labels: Logarithmic Equations, My Algebra.com posts

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