document.write( "Question 611636: $\"sqrt%282x%2B15%29-x=6\"$ \n" ); document.write( "

Algebra.Com's Answer #385070 by vleith(2983) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"sqrt%282x%2B15%29-x=6\"$
\n" ); document.write( " $\"sqrt%282x%2B15%29+=+x+%2B+6\"$ now square both sides
\n" ); document.write( " $\"2x%2B15+=+x%5E2+%2B+12x+%2B+36\"$ collect terms and solve for x
\n" ); document.write( " $\"0+=+x%5E2+%2B10x+%2B+21\"$
\n" ); document.write( " $\"0+=+%28x%2B3%29%28x%2B7%29\"$
\n" ); document.write( "so x is either -3 or -7
\n" ); document.write( "Check your answers \n" ); document.write( "

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