document.write( "Question 391285: what is the quadratic formula?
\n" ); document.write( "what is the origin of the quadratic formula?
\n" ); document.write( "

Algebra.Com's Answer #277571 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
The quadratic formula says that the two roots of any second degree polynomial {{ax^2 + bx + c}}} are \"x+=+%28-b+%2B-+sqrt%28b%5E2+-+4ac%29%29%2F2a\".\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "It is possible to derive the quadratic formula by completing the square. This Wikipedia article lists multiple ways to derive the formula:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "http://en.wikipedia.org/wiki/Quadratic_equation
\n" ); document.write( "
\n" );