document.write( "Question 896702: If the square of a number is added to three time a number the result is 108. Find the number? \n" ); document.write( "
Algebra.Com's Answer #543714 by thesvw(77)\"\" \"About 
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If that number is x...\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2+%2B+3x+=+108\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2+%2B+3x+-+108+=+0\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-3+%2B-+sqrt%289+%2B+4%2A108%29%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-3+%2B-+21%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+9\" or \"x+=+-12\"\r
\n" ); document.write( "\n" ); document.write( "I used the formula \"x+=+%28-b+%2B-+sqrt%28b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
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