document.write( "Question 1141994: solve the equation: ln(x+1)+ln(x-1)=4 \n" ); document.write( "
Algebra.Com's Answer #762647 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E2-1=e%5E4\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E2=e%5E4%2B1\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=sqrt%28e%5E4%2B1%29\"
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