Charge inside Grounded Cube

[cp51]

1. The problem statement, all variables and given/known data
There's a charge, not at the center of a grounded cube. Find the potential in the cube.


2. Relevant equations



3. The attempt at a solution

I'm really just looking for a place to start. I should end up with some kind of series, but I dont know if I should be doing some Method of Images, or Greens Function, or Poisson Equation. The only information I can find is for Laplace's Eqn which doesnt apply here, so I'm kinda stuck.

Just trying to get a head start on some homework, so can someone just point me in the right direction?

Thanks,
-CP51

[sagardip]

The potential of the cube is zero. So try the method of images to set up a system of charges due to which the potential of the cube is zero.See if that works