document.write( "Question 829898: log x+log(4+x)=log 5 \n" ); document.write( "
Algebra.Com's Answer #500190 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"log%28%28x%29%29%2Blog%28%284%2Bx%29%29=log%28%285%29%29\"
\n" ); document.write( "\"log%28%28x%284%2Bx%29%29%29=log%28%285%29%29\"
\n" ); document.write( "\"x%284%2Bx%29=5\"
\n" ); document.write( "\"x%5E2%2B4x-5=0\"
\n" ); document.write( "\"%28x%2B5%29%28x-1%29=0\"
\n" ); document.write( "Two possible solutions:
\n" ); document.write( "\"x%2B5=0\"
\n" ); document.write( "\"x=-5\"
\n" ); document.write( "However checking in the original equation, \"log%28%28-5%29%29%29\" does not exist so this is not a solution.
\n" ); document.write( "\"x-1=0\"
\n" ); document.write( "\"x=1\"
\n" ); document.write( "\"log%28%281%29%29%2Blog%28%285%29%29=log%28%285%29%29\"
\n" ); document.write( "True, this is a solution.
\n" ); document.write( "\"highlight%28x=1%29\"
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