*Persamaan Kuadrat -butetmengajar* part 1 : https://www.youtube.com/live/22pww2ReEeQ?si=M6lQrRCBYQZbCOyf part 2 : https://www.youtube.com/live/9kBFb2InD_k?si=yx-kQHflmXNA5g-D part 3 : https://www.youtube.com/live/rwPQ2z6bsaU?si=6TZyvMOEBKWlztGy aku join kelas ini juga semalem! tonton yaa