document.write( "Question 47449: Solve by completing the square. Other methods will receive no credit.
\n" ); document.write( "x2 + 6x + 2 = 0
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Algebra.Com's Answer #31326 by Earlsdon(6294) $\"\"$ $\"About$

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Solve by completing the square.
\n" ); document.write( " $\"x%5E2%2B6x%2B2+=0\"$ First, subtract 2 from both sides of the equation.
\n" ); document.write( " $\"x%5E2%2B6x+=+-2\"$ Complete the square on the left side by adding the square of half the x-coefficient $\"%286%2F2%29%5E2+=+9\"$ to both sides of the equation.
\n" ); document.write( " $\"x%5E2%2B6x%2B9+=+7\"$ Now factor the left side.
\n" ); document.write( " $\"%28x%2B3%29%28x%2B3%29+=+7\"$
\n" ); document.write( " $\"%28x%2B3%29%5E2+=+7\"$ Take the square root of both sides.
\n" ); document.write( " $\"x%2B3+=+plus+or+-sqrt%287%29\"$ Subtract 3 from both sides.\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+-3%2B-sqrt%287%29\"$ \n" ); document.write( "

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