'New' Way To Solve Quadratic Equations That Everyone Is Talking About

This is an incredible problem solving technique. It is amazing the method is not commonly taught.

Original sources - Professor Po-Shen Loh explains the method, history, and gives examples in the following articles and videos. They are worth checking out.

News stories

Similar methods
The Quadratic Formula, Revisited (Girls' Angle Bulletin Oct/Nov 2017)
Quadratic equations taught in Germany

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[MindYourDecisions]

I was still new to making videos as the channel was just starting. It took so long to do the animations, and I recorded the entire video in a single take so the video is not as polished. So I was overwhelmed by the positive comments, like: "This video should be presented in every high school and middle school algebra class.
"

[manishameruliya]

In India (and many other countries) there are three ways to do it:
1. Split the middle term
2. Completeting Square Method
3. Quadratic Formula

[kabochaVA]

The whole comment section:

This is "new"? Here in we learn it in 8th grade.
It's known as the "pq-Formel" / "Viète's theorem" / "Middle Term Split" / "S(um) and P(roduct) method"...

[chilllife]

Old: chicken produce eggs
America's latest: eggs are produced by chicken .

[aczajka]

This is literally a derivation of the quadratic formula

[sarthakmirani]

Presh : Mathematicians found a NEW way for solving quadratic equations

The Comments : Nope

[anuragsharma]

The quadratic formula is easier to memorize. This method(in the video) is intuitive(easier for beginners) but still requires memorization of steps.

The beauty of quadratic equation formula is the √(b^2 -4ac) part of it:

This part tells you whether the roots are real, imaginary root or single root.(Discriminant)

This formula also gives us the shape of the parabola that the equation forms.

For beginners memorising the formula is difficult but as you dive deeper into mathematics, this formula looks elegant.

[maon]

A: The quadratic formula is not difficult.

B: This method isnt easier.

[lowlifexysvendetta]

I have known this formula as the p q formula
And yes, I am from Germany

[gabrielnobrega]

It ends up being the same thing, except that instead of memorizing a formula, you're memorizing a method that ends up in the same formula

[bobengelhardt]

"You don't have to memorize anything" Except a multi-step process with much more opportunity to forget some little, but vital, step. Way, way harder than just memorizing Brahmagupta's formula!!

[algc]

This is literally Diophante's method, step by step. "Ancient mathematicians didn't do it like this" well yes they did

[detectivl]

This method really only is new for Americans 😂

[tomsharpe]

This is just 'completing the square'. Completing the square for a general quadratic equation is precisely how you derive the quadratic equation. Soooo... nothing new here.

[aaash]

Americans- Whoa that’s a new way to solve Quadratic Equations !
Meanwhile in India- Grade 8 students solve via this method.

[scottcarothers]

Y’all like “only Americans didn’t know this” but i got taught this before the quadratic formula

[lunaticluna]

"Mathematician finds a new and easier way to calculate quadratic equations"

Yeah no it definitely wasnt him that found it

[SK]

In the end, we end up with the same process but in a different route.. but it does look more lengthy than the usual way tho..

[johndoeanon]

When I saw this, I thought for a moment: "I wonder if it's just going to be a complicated way to do the PQ-formula".

A few minutes later, lo and behold.

[FROFilmsIRE]

When you say "everyone" is talking about this new formula, presumably you mean the tiny minority of us who go to YouTube to muse about maths.