Even though these did not work out for my desktop computer (I found my old 10+ year old speakers sounded better, just appear a little beat up) - I do think they will definitely improve the sound on any tablet!
Keep in mind, the speakers are not quite portable and you won't be able to take the tablet around the home. But it would be fine if you have in on your desk as you have the speakers connected to it. Simple set up, the subwoofer needs to be plugged into an electrical socket, the 2 speakers are attached to the subwoofer. The 3.5mm jack would go into the tablets headphone jack.