§10.3 Uitleg theorie + voorbeelden
(ap)q = apq
https://www.youtube.com/watch?v=6uQf-MBGrds
(ab)p = ap · bp
https://www.youtube.com/watch?v=zWifarXbcbU
ap / aq = a(p-q)
https://www.youtube.com/watch?v=oXnEtpstkcg
ap · aq = a(p+q)
https://www.youtube.com/watch?v=hNNQKx9vzL0