Solved! connecting a set of bookshelf speakers and a sub to my computer

Dec 28, 2018
i have recently purchased a set of Monitor audio Bronze 1 (which apparently need speaker cables to work) each side has a positive and a negative and on top of that my subwoofer needs a sub cable. this all somehow needs to be connected to my computer with the standard cables that are avaliable ( no banana cables or sub cable connections). how would i go about connecting it all together? btw my speakers cannot connect to the subwoofer as the sub only has a single input port