document.write( "Question 781449: Solve (u-4)^2-18=0 where u is a real number.
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Algebra.Com's Answer #475916 by fcabanski(1391) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28u-4%29%5E2+=18\"$

\n" ); document.write( " $\"u-4+=+sqrt%2818%29+=+sqrt%289%2A2%29+=+3%2Asqrt%282%29\"$ or $\"u-4+=+-sqrt%2818%29+=+-sqrt%289%2A2%29+=+-3%2Asqrt%282%29\"$

\n" ); document.write( " $\"u+=+4%2B3sqrt%282%29\"$ or $\"u=4-3sqrt%282%29\"$ \n" ); document.write( "

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