Find the equation of the plane that passes through the point $(2,1,-6)$ and is tangent to the surface $$x^2 + 4y^3 + 3z^2 = 116$$ at $(2,1,-6)$. Write it in the form indicated below.

Equation: $4(x- 2) +$$(y -$)$+$$(z -$)$= 0$