document.write( "Question 1116329: Solve using complete the square.
\n" ); document.write( "2x^2+13x+20 \n" ); document.write( "

Algebra.Com's Answer #731218 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
Solve using complete the square.
\n" ); document.write( "2x^2+13x+20 = 0
\n" ); document.write( ":
\n" ); document.write( "2x^2 + 13x = -20
\n" ); document.write( "we want the coefficient of x^2 to be 1, divide equation by 2
\n" ); document.write( "x^2 + 6.5x = -10
\n" ); document.write( "complete the square: $\"%286.5%2F2%29%5E2+=+10.5625\"$ , add to both sides
\n" ); document.write( "x^2 + 6.5x + 10.5625 = -10 + 10.6525
\n" ); document.write( "(x + 3.25)^2 = .5625
\n" ); document.write( "Find the square root of both sides
\n" ); document.write( "x + 3.25 = +/- $\"sqrt%28.5625%29\"$
\n" ); document.write( "two solutions
\n" ); document.write( "x = -3.25 + $\"sqrt%28.5625%29\"$
\n" ); document.write( "x = -3.25 + .75
\n" ); document.write( "x = -2.5
\n" ); document.write( "and
\n" ); document.write( "x = -3.25 - $\"sqrt%28.5625%29\"$
\n" ); document.write( "x = -3.25 - .75
\n" ); document.write( "x = -4 \n" ); document.write( "

\n" );