Algebra 77 - The Quadratic Formula

Before the method of completing the square was developed, only very limited types of quadratic equations could be solved. This method eliminated those limitations, allowing the solutions of any quadratic equation to be found. As mathematics progressed, this methodology was eventually reduced to a formula. In this lecture, we will show how this "quadratic formula" can be derived from the process of completing the square, and show why the quadratic formula is so useful.

[jbi]

Brilliant. Can’t imagine a virtual teacher is better than a real school teacher.

[revolutionnaman]

HAPPY TEACHERS DAY! Prof. Von Schmohawk... U r my fav. alegbra teacher, hope I'll be able to conquer the field of COMPUTER SCIENCE with it. Prof. Von Schmohawk's teachings are truely blissful to the students. In Hinduism to the greatest teacher of all times, it goes like this 'GURU BRAHMA GURU VISHNU GURU DEVO MAHESHWARHA GURU SAKSHAT PARABRAHMA TASMAI SRI GURAVE NAMAH '. Meaning:- Guru Brahma - Guru is The Supreme Teacher, who is the Lord of Creation, also called as Generator, Guru Vishnu means Teacher is Vishnu (Vishnu is the Lord who is called organizer), Guru Devo Maheshwarah means Teacher is the Maheshwara (Shiva or the destroyer), Guru Sakshat Parabrahma means Parbrahma viz. the supreme god or almighty.

[DamianReloaded]

This is one of those over the top coincidences. I was just re-learning this (after 20 years) a few hours ago! What a real happy coincidence!

[mehulchawla]

Thank You so much Professor. Really appreciate your efforts.Hats off to you.

[mazharsher]

Plz world🌎,
Come and watch these videos to get the taste of mathematics,
Thanku whyu🙏

[duckymomo]

What is the true determinant? (I heard that the true discriminant isn’t just b^2-4ac in abstract algebra)

[Benzene-yl]

Wow, this is understandable 👍
I understand everything so easily... hopefully that it will help me to pass my SAT exam 🙏

[mybluemars]

If its on the x axis its a real solution.

[najibqunoo]

Hello we are in 2019
No one does not know this formula and the derievation