document.write( "Question 888748: solve the equation by completing the square: x^2+8x=14 \n" ); document.write( "

Algebra.Com's Answer #537646 by LinnW(1048) $\"\"$ $\"About$

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x^2+8x=14
\n" ); document.write( "(8/2)^2 = 4^2 = 16
\n" ); document.write( "so
\n" ); document.write( "add 16 to each side
\n" ); document.write( "x^2+8x+16=30
\n" ); document.write( "(x+4)(x+4) = 30
\n" ); document.write( "(x+4)^2 = 30
\n" ); document.write( "take square root of each side
\n" ); document.write( " $\"x+%2B+4+=+sqrt%2830%29\"$
\n" ); document.write( "or
\n" ); document.write( " $\"x+%2B+4+=+-sqrt%2830%29\"$
\n" ); document.write( "so
\n" ); document.write( " $\"x+=+-4+%2B+sqrt%2830%29\"$
\n" ); document.write( "or
\n" ); document.write( " $\"x+=+-4+-sqrt%2830%29\"$ \n" ); document.write( "

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