The correct answer is 6 - sqrt(6)
We know this because when we solve with the quadratic equation, the numbers come out with a constant plus and minus the discriminant under a square root symbol. You can see that below in the quadratic equation.
[tex] \frac{-b +/- \sqrt{ b^{2} - 4ac } }{2a} [/tex]
So seeing that one answer is 6 + sqrt(6), we can assume 6 is the discriminat and 6 is the constant. Thus giving us the new answer as well.
