document.write( "Question 311736: Can you help me solve for x? $\"sqrt%28x%5E2%2B2%29=x%2B4\"$ \n" ); document.write( "

Algebra.Com's Answer #222961 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"sqrt%28x%5E2%2B2%29=x%2B4\"$
\n" ); document.write( "Square both sides, (FOIL the right side
\n" ); document.write( "x^2 + 2 = x^2 + 8x + 16
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\n" ); document.write( "combine the x's on the left
\n" ); document.write( "x^2 - x^2 - 8x = 16 - 2
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\n" ); document.write( "-8x = 14
\n" ); document.write( "x = $\"14%2F%28-8%29\"$
\n" ); document.write( "x = -1.75
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\n" ); document.write( "Check solution in original equation
\n" ); document.write( " $\"sqrt%28-1.75%5E2%2B2%29=-1.75%2B4\"$
\n" ); document.write( " $\"sqrt%283.0625%2B2%29=2.25\"$
\n" ); document.write( " $\"sqrt%285.0625%29=2.25\"$
\n" ); document.write( "2.25 = 2.25 \n" ); document.write( "

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