Quadratic Equation x^2 - 12x + 7 = 0 Po-Shen Loh Style

In this video I go over how to solve a quadratic equation using the method of Po-Shen Loh.

Please share, like, and all of that other good stuff.

If you have any comments or questions please leave them below. Thank you:)

[nickcellino]

The method may be old but it's not normally taught in text books so Professor Po-Shen Loh deserves credit for popularizing it.

[nickcellino]

Before watching this video, I abandoned the sums and products method when the answers weren't easy to solve in my head with simple math because they were square roots. Now, thanks to Professor Po-Shen Loh's method, I can solve all those difficult quadratic equations rather easily avoiding factoring and the dreaded quadratic formula.

[martinepstein]

When the linear coefficient is even I like to use a simplified quadratic formula:

ax^2 - 2bx + c = 0

x = (b +- sqrt(b^2 - ac)) / a

So here we have x = 6 +- sqrt(6^2 - 7) = 6 +- sqrt(29)

[hexa]

Tbh in my opinion the formula is far more useful because of its usefulness in algebra. In this one you need to set to variables to add up to b and then solve for u to be able to use it algebraicly.

[MaviLeb]

This is not new, it's just the p-q-formula. Also, it's not a technique from poh shen loh. This is taught in German schools for example and it's known for 4000 years already according to Wikipedia.

[dawon]

Pinagulo mo lang ang po-shen Loh method! Siguro nga ay di mo talaga lubos na ma-intindihan ang method na iyan ni Po-Shen Loh!

[davidsoto]

Please do a video on solving literal equations.

[roccoparrilla]

Can someone reply me with the link of a video with subtitles

[FunctionalIntegral]

Sorry but this is the BABYLONIAN method (approx 1700 BC!).

[davidsoto]

I learned how to solve this with the quadratic formula.

[dattatreyamangipudi]

This method fails in many equations....