Only laptops with AMD APUs (like the A10-8700p) will work in "dual graphics mode" (an AMD term) with a dedicated AMD GPU.
AMD APUs will not dual graphics with nVidia GPUs.
Intel integrated graphic cores will not "dual graphics" with any GPU.
Dedicated nVidia GPUs will only "dual graphics" with another nVidia GPU. But both nVidia GPUs must be already be installed in the laptop and it is known as SLI.