document.write( "Question 145525: I need help solving this logarithmic equation:
\n" ); document.write( "log(x-1)+log(x+2)=2
\n" ); document.write( "

Algebra.Com's Answer #106176 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
log(x-1)+log(x+2)=2
\n" ); document.write( "log[x^2+x-2] = 2
\n" ); document.write( "x^2+x-2 = 10^2
\n" ); document.write( "x^2+x-102 = 0
\n" ); document.write( "------
\n" ); document.write( "x = [-1 +- sqrt(1-4*1*-102)]/2\r
\n" ); document.write( "\n" ); document.write( "x = [-1 +- sqrt(409)]/2\r
\n" ); document.write( "\n" ); document.write( "x = [-1 +- 20.22]2
\n" ); document.write( "Positive solution:
\n" ); document.write( "x = 9.612
\n" ); document.write( "==========================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.[
\n" ); document.write( "
\n" );