document.write( "Question 308462: Solve by completing the square.\r
\n" ); document.write( "\n" ); document.write( "x^2-18x=-106 \n" ); document.write( "
Algebra.Com's Answer #220587 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Solve by completing the square.
\n" ); document.write( "x^2 - 18x = -106
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\n" ); document.write( "x^2 - 18x + ___ = -106
\n" ); document.write( "Find the third term to complete the square: using the coefficient of x: (18/2)^2 = 81
\n" ); document.write( "Add 81 to both sides
\n" ); document.write( "x^2 - 18x + 81 = -106 + 81
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\n" ); document.write( "x^2 - 18x = 81 = -25
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\n" ); document.write( "(x - 9)^2 = -25
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\n" ); document.write( "Find the square root of both sides
\n" ); document.write( "x - 9 = +/-\"sqrt%28-25%29\"
\n" ); document.write( "using i
\n" ); document.write( "x - 9 = +/- 5i
\n" ); document.write( "two solutions
\n" ); document.write( "x = 9 + 5i
\n" ); document.write( "and
\n" ); document.write( "x = 9 - 5i\r
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