The Quadratic Formula (Derivation)

[AnimusInvidious]

"Then... let everyone else pay attention."
Love it.

[avi]

Finally, a teacher who doesn't only care about the "How to solve", but also "How did it come to be like this" and "Why is like this"

[NoTimeForThatNow]

Still shocks me to see the behavior of many of the students, they should realize how lucky they are to have a great teacher.

[geekyprogrammer]

I have completed my Engineering 2.5 years ago and I was really good at when I see this guy, my mind always blows and I feel dumb lol These students are very lucky to get such a teacher!

[johnpleckaitis]

I’m going to school to be an ME. Math is beautiful and simplistically easy. I wish every student here appreciates how this man breaks it down

[big_brein]

I am shocked. I tried learning by reading my textbook but I got so confused, then I came here and I don't think it could've been explained any better. Thank you sir.

[pedrito]

I am 43, and love math(s). I had a very good teacher in high school. He was great, but not as great as you, still, we respected him so much. I want to thank you for all these videos that bring all that knowledge back to me. Also, now I know what surd means. We don't use that word here in CA.

[garydunken]

Merry Christmas. Congratulations for the Australian of the Year's NSW Local Hero Award.

[singamar]

Neither our teacher, nor we the students, made a mountain out of a molehill like he is doing here. I must add that he is an efficient teacher who has done wonderfully well in other videos. Even the backbenchers of our class knew how to identify the coefficients a, b and c in a quadratic equation regardless of the way it was written!

[KitBunting]

Merry Christmas Eddie, thanks for all the videos. I'll be posting videos for my students this year, do other teachers at your school post videos? Or do you make the videos for all levels?

[parthnaik]

Merry Christmas Mr.Eddie Woo . Appreciating you for your work . Please continue your YouTube videos, they are a lot helpful to the students .

[Tristoo]

if 1 billionth of the teachers were like you we'd have colonized the known universe 20 years ago

[ChipterLP]

I still remember how some gene scientist, as a part of teaching us about genes and GMOs, tried to find the population with a specific dominant gene using this formula but somehow (keep in mind we were 1st grade at high school when she tried to do this, we didnt even know the quadratic formula exists) she forgot how to use it and took an entire hour to finish it. I learned nothing that seminar. Anyway, I really love this, helping me be ahead of class in math just like at middle school.

[karthikrajtm]

If teachers like you are presente in every school of India then everyone will start loving maths, I say this because I have one like you. I'm in class 10 from INDIA

[practicalsoftwaremarcus]

I really enjoy you videos, and I was wondering if you could make some on more advanced topics, like complex variable, fourier transforms, etc.. Would be awesome!

[dimitris]

Here in greece the square root of b^2-4ac we symbolize it with the letter Δ(capital letter of delta)and then we say
x=-b+-square root of Δ/2a

[RoseAngella]

Its a shame Mr Woo had to take time to settle some of his students. If he hadn’t had to do that he would have completed the explanation in its entirety and be able to talk more on the operations.

[panospg]

Eddie please answer im a second year junior high school student. which of your videos you recommend to me to see. I love maths so I want to learn even more than the basics

[satyamgupta]

Where did you teach. Give me some hint regarding your school ar!

[kaijeong]

MERRY CHRISMAS MR WOO!! Thank you for all your videos this year, they helped me alot in tests :))