document.write( "Question 428278: Solve each quadratic equation by completing the square.\r
\n" ); document.write( "\n" ); document.write( "1.X^2+4x+2=0\r
\n" ); document.write( "\n" ); document.write( "2.X^2+8x=1\r
\n" ); document.write( "\n" ); document.write( "3.X^2+2=6x+4 \n" ); document.write( "
Algebra.Com's Answer #297725 by nerdybill(7384)\"\" \"About 
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1.X^2+4x+2=0
\n" ); document.write( "X^2+4x = -2
\n" ); document.write( "X^2+4x+4 = -2+4
\n" ); document.write( "(x+2)(x+2) = 2
\n" ); document.write( "(x+2)^2 = 2
\n" ); document.write( "(x+2) = sqrt(2)
\n" ); document.write( "x = sqrt(2) - 2
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\n" ); document.write( "2.X^2+8x=1
\n" ); document.write( "X^2+8x+16 = 1+16
\n" ); document.write( "(x+4)(x+4) = 17
\n" ); document.write( "(x+4)^2 = 17
\n" ); document.write( "(x+4) = sqrt(17)
\n" ); document.write( "x = sqrt(17) - 4
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\n" ); document.write( "3.X^2+2=6x+4
\n" ); document.write( "X^2=6x+2
\n" ); document.write( "X^2-6x = 2
\n" ); document.write( "X^2-6x+9 = 2+9
\n" ); document.write( "(x-3)(x-3) = 11
\n" ); document.write( "(x-3)^2 = 11
\n" ); document.write( "(x-3) = sqrt(11)
\n" ); document.write( "x = sqrt(11) + 3\r
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