Using the Discriminant (Exam question about points of intersection)

[PrestonianTheGamer]

I have learn a lot from your video. Thank you a lot for making education free

[joonamikkonen]

LOL I've used the formulas all my school life but he makes it so much more understandable to me! I'm here watching these videos on my free time and I'm not even into maths! : 3 The best teacher FOUND!

[karthikmallavarapu]

I am preparing for IAS and have Maths as an optional. You have been helping me a lot for the last few months. Thank you man. If you wonder what is IAS, it is the toughest exam in India. Indian Administrative Service

[assassinstube]

Oh this is so helpfull! Can you make more of these exam question videos? They are the most helpfull thing ever!

[descariousdelphi]

It's interesting that there is a map of Germany on the right hand side :D

[AndrewTota]

I really dont understand that part, could someone please explain. 3:13

[seroujghazarian]

This is a very particular case where b is even. In this case, delta'=b'^2-ac with b'=b/2 is used instead (it is easier)

[vinodjoshi]

Sir Can you guide me how to form an equation in quadratic form????

[simonwax]

Does anybody know if this is from extension one or two exam. Thanks as always EW.

[JohnM...]

Please - <0 gives no REAL solutions ( always be precise).

[jae]

I don’t even take calculus and I’m not smart enough to get into it for high school, I don’t know why I’m here. Why is this so entertaining to me?