y          = (((a * (x ^ 2)) + (b * x)) + c)
a          = 1
x          = 0
b          = -1
c          = -6
radical    = sqrt(((b * b) - ((4 * a) * c)))
root1      = ((-b - radical) / (2 * a))
root2      = ((-b + radical) / (2 * a))
