https://www.dpmms.cam.ac.uk/~vrn20/Waring_longer.html https://www.dpmms.cam.ac.uk/~vrn20/Waring_longer.html Here is a good beginners explanation for people tha

https://www.dpmms.cam.ac.uk/~vrn20/Waring_longer.html https://www.dpmms.cam.ac.uk/~vrn20/Waring_longer.html Here is a good beginners explanation for people that don't quite understand what's going on (like me).