China | Can you solve this? | A Nice Math Olympiad Algebra Problem

Hello My Dear Family😍😍😍
I hope you all are well 🤗🤗🤗
If you like this video about
How to solve this math problem
please Like & Subscribe my channel as it helps me alot ，🙏🙏🙏🙏

[@PedroOrtiz-sh8hs]

Beautiful solution

[@jupanulkyrre1234]

I knew the solution -3 in 3 seconds after i watched the ecuation...

[@samuelstephens5545]

How?

[@_Diana_S]

I did two substitutions, simply because i like it (and i could :) ): first x+3 = t, and then when i got (t^2-1)(t^2-9) another substitution t^2-5=u. From here u^2-16=9, i.e. u= +/- 5 and from here the solutions are the same.

[@kebirbenkaccem726]

Bravo!!!!!

[@1234larry1]

If you multiplied the original factors together the leading exponent would be x^4, so wouldn’t you have 4 solutions?….ok..never mind…you have two -3’s which are the same root.

[@johndavidmyself8039]

I was thinking the same thing, but when I got two -3s, I assumed I'd made a mistake, then spent too much time trying to find that mistake. (Was still fun)

[@maxwellarregui814]

Sres. Learncommunolizer. Reciban un cordial saludo, bonito ejercicio, con un desarrollo interesante e imaginativo para aplicar la agrupación y determinar un cambio de variable. El polinomio es de cuarto grado y me muestra tres raíces. En el minuto 4:00 llega a determinar un trinomio cuadrado perfecto, cuya raíces son recurrentes y es donde está la raíz que falta indicar. Gracias por la atención que se me brinde. Éxitos.

[@cachotrelles4715]

👌👌👏👏

[@huguesamaudric4481]

Try y=x+3

[@Antistress_Channel]

😮😮😮😮😮😮😮

[@mustafakaradal724]

-3

[@user-lf1bm8fm2g]

Браво-брависимо. Краткость сестра таланта.

[@Fedor___1]

Что такое биквадратное уравнение тебе неизвестно?