China | Can you solve this ? | Math Olympiad | X=?

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  • Опубліковано 13 січ 2025

КОМЕНТАРІ • 17

  • @is7728
    @is7728 Рік тому +10

    7:03 it should be a^2 MINUS 2a + 1.

  • @CawasKapadia
    @CawasKapadia 9 місяців тому

    I think you do a terrific job explaining all the steps. Your methods may be a bit long, but they are very helpful to struggling math students. I taught high school math for 25 years and I always learn something from his videos. Please keep them coming. Dr. Kapadia 🌺

  • @rainerzufall42
    @rainerzufall42 11 місяців тому +2

    You were kind of lucky (because of the construction of the question), that the sum (a-1)² + (b-1)² + (c-1)² + (d-1)² was zero (0) and not some positive number! That's the only occasion, that you can follow, that all these squares are zero. For negative, there are no real solutions, for positive, you don't know how to continue. For zero, you get what you want. So what about sqrt(x-1)+sqrt(2x-3)+sqrt(3x-5)+sqrt(4x-7) = 5x - 6.005 ? Are you helpless now? The sum of squares is now 0.01 ! You'll get infinite many solutions now, e.g. a=1.1 or a=0.9 with b=c=d=1 or b=1.1 or b=0.9 with a=c=d=1 or ... and everything in between!

  • @bhabenbordoli1981
    @bhabenbordoli1981 9 місяців тому

    P/ mention the theory that if sum of term s are zero then rach term is equel to zero.

  • @rainerzufall42
    @rainerzufall42 11 місяців тому +2

    7:03 MINUS! a² - 2a + ...

  • @God-gi9iu
    @God-gi9iu Рік тому +1

    Wow

  • @에스피-h8t
    @에스피-h8t Рік тому +2

    Solution by insight
    1+1+1+1=10-6
    x=2

    • @rvqx
      @rvqx Рік тому

      Yes, this much easier to find than the given solution.

  • @akashkataria4248
    @akashkataria4248 Місяць тому

    Hi

  • @hategekimanaemmanuel8877
    @hategekimanaemmanuel8877 Рік тому

    IMIBARE IRAKOMEYE

  • @يوسفالبرغوثي-ه3ت

    Good disign !!!

  • @user-qr7dw4hk6x
    @user-qr7dw4hk6x Рік тому

    Сколько лишних слов и движений...

  • @rkkrkk440
    @rkkrkk440 Рік тому

    Ans:- x=2 😂😂😂😂

  • @comdo777
    @comdo777 Рік тому

    answer=2/-1