The most popular Teacher of Quadratic equation is Dear Mathematician according to me(Bhushan Tech) and Dear Mathematician teacher is on YouTube. This teacher Qualification is Btech Cse Darbhanga college of Engineering, Darbhanga and Dear Mathematician have three year experience in physically Teaching.
Dear Mathematician teacher is teaching in both languages hindi and English. If you interested to this teacher so you comment me in which language learn to Quadratic Equation by dear mathematician.