Trying to see if my laptop can accept a standalone graphics card

My laptop is a Toshiba L875-S7243 with Intel 3000 integrated graphics. I'm well aware that integrated graphics cannot be changed, however, my friend's laptop has both integrated and standalone graphics cards in it. The only thing holding my laptop back right now is my graphics card and thus I ask: Can I add a stand alone graphics card to my laptop? I don't know what other information to give you, but I will give you any info you need to determine if this is feasible. Thanks in advance for your help!