You can put this solution on YOUR website! 9 square root of 3 = y squared plus 2y
----
y^2 + 2y - 9sqrt(3) = 0
-------
Use the Quadratic Formula to get::
y = [-2 +- sqrt(4+4*9sqrt(3))]/2
----
y = [-2 +- 2sqrt(1+9sqrt(3))/2
----
y = [-1 +- sqrt(1+9sqrt(3))
--------
Cheers,
Stan H.
----