document.write( "Question 690402: solve: log base a of x + log base a of (x-2)= log base a of (x+4) \n" ); document.write( "
Algebra.Com's Answer #426420 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
solve: log base a of x + log base a of (x-2)= log base a of (x+4)
\n" ); document.write( "loga[x(x-2)]=loga(x+4)
\n" ); document.write( "x(x-2)=(x+4)
\n" ); document.write( "x^2-2x=x+4
\n" ); document.write( "x^2-3x-4=0
\n" ); document.write( "(x-4)(x+1)=0
\n" ); document.write( "x=4
\n" ); document.write( "or
\n" ); document.write( "x=-1 (reject, (x-2)>0)
\n" ); document.write( "
\n" );