document.write( "Question 630633: Solve by completing the square what value should you add to each side of the equation x^2+18x=-9 \n" ); document.write( "
Algebra.Com's Answer #397053 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Solve by completing the square what value should you add to each side of the equation x^2+18x=-9
\n" ); document.write( "---------------
\n" ); document.write( "x^2 + 18x + (18/2)^2 = -9 + (18/2)^2
\n" ); document.write( "----
\n" ); document.write( "Answer: (18/2)^2 = 9^2 = 81
\n" ); document.write( "------------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );