How to plug pive DJ speakers into a laptop?

okay, so theoretically i have 2 Pro Audio PA DJ Speakers 12 Inch 3 Way Pair 1200C and a Mackie FRS 1300 amp... and my ASUS laptop that I want to plug in to play music from. I just want to play my music from my laptop on those speakers, but I dont know what connector cables I need to do that, and Im new at DJ speaker/amp plugs, so you may have to spell it out for me