document.write( "Question 1162789: make X the subject of the formula
\n" ); document.write( " A= X(2X-N)-X
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Algebra.Com's Answer #786653 by Alan3354(69443)\"\" \"About 
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make X the subject of the formula
\n" ); document.write( " A= X(2X-N)-X
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\n" ); document.write( "a = 2x^2 - nx - x
\n" ); document.write( "2x^2 -(n+1)x - a = 0
\n" ); document.write( "It's a quadratic in x
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\n" ); document.write( "\"x+=+%28n%2B1%29%2F4+%2B+sqrt%28%28n%2B1%29%5E2+-+8a%29%2F4\"
\n" ); document.write( "\"x+=+%28n%2B1%29%2F4+-+sqrt%28%28n%2B1%29%5E2+-+8a%29%2F4\"
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