Quadratic Sequences - Finding the Nth term - (Edexcel GCSE Maths 9-1 New Syllabus)

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  • Опубліковано 28 січ 2025

КОМЕНТАРІ • 79

  • @tristanjager4112
    @tristanjager4112 8 років тому +51

    Hello Mr Jeffery. I need to say my thanks, 2 years ago I was planning on studying PPE at York university. I needed to increase my B grade GCSE to and A grade in maths. I had to accomplish this while doing an access course. I was in a position where I had to learn GCSE maths 6 years after I had left secondary school, to an A grade standard, in less than 3 weeks. Your videos plus help from a friend allowed me to accomplish the impossible. Mr Jeffery, I can't thank you enough. I'm glad to see a new video posted, and I wish you all the success in the future sir.

    • @MrJefferyMaths
      @MrJefferyMaths  8 років тому +10

      That's great to hear. Thanks for taking the time write such a lovely message. :)

  • @Crasharino
    @Crasharino 6 років тому +30

    Out of all the videos I've watched, this is by far the most helpful for doing it step by step

  • @jayseunglee1707
    @jayseunglee1707 3 роки тому +2

    Mr. Jeffery, I would really like to thank you for this. I have a small math quiz tomorrow and I forgot how to do everything. I was kind of freaking out cuz all the other videos were completely useless but you, are a absolute legend.

  • @endurofordaboys1768
    @endurofordaboys1768 7 років тому +10

    you my friend are a legend, iv watched about 5 diffrent videos which didn’t help atall, now i understand cheers mate

  • @rosyrilwan945
    @rosyrilwan945 7 років тому +2

    I can't believe this !! I have been struggling for so long and got soo low marks in sequence and I hated this lesson too but as I have my o' levels I saw many videos for Quadratic sequence but never understood any of them then I came across ur video ..and like within 5 sec I just understood the whole SEQUENCE LESSON ..I am able to do really well in sequence and feeling so happy .ALL THE CREDIT GOES TO MR JEFFERY.Thank YOU so much! plz, keep making more videos don't stop it "U R A REALLY GREAT TEACHER." THANKS ONCE AGAIN :)

  • @smart00ze10
    @smart00ze10 4 роки тому +3

    THANK YOU!!! i had no idea how to do this but you made it SO simple. i watched 5 vids before you and this was the one!

  • @Ava-lm1zy
    @Ava-lm1zy 5 років тому +2

    This is the best explanation out of them all. Well done!

  • @ROCKY-pu1zt
    @ROCKY-pu1zt 11 місяців тому

    Sir, thank you. You've just made life a lot easier for this potential medical student

  • @yeomy7825
    @yeomy7825 6 років тому +16

    Hello sir! Thank you for this lovely video. At the end, on question (e) I did 51-31 which = 20. 20-17 = +3 and not +6 as all the other numbers follow the pattern of +6. Sorry if i may be wrong.

  • @beracahumoru5199
    @beracahumoru5199 Рік тому

    Thank you so much Mr Jeffery..
    I have never really understood this topic but after watching your video, I now get the concept..

  • @MacacoMoninheiro
    @MacacoMoninheiro 3 роки тому +1

    Get this man a raise!

  • @elliott4333
    @elliott4333 3 роки тому

    Thank you for this - you've just made a new concept click in my mind. Well done.

  • @minalhq5762
    @minalhq5762 4 роки тому +1

    Great video, after so many videos i finally understood! Thankyou!

  • @nadhirferras3090
    @nadhirferras3090 5 років тому +2

    Thanks it really helpful I have my math Mok exam coming up and this it the only video I found it helpful.

  • @stizzy6695
    @stizzy6695 8 років тому +5

    love to see u back 👍

  • @jliu6534
    @jliu6534 5 років тому +2

    Very helpful and clear explanation . Thank you so much ~

  • @Gyiebay
    @Gyiebay 3 роки тому +1

    I love this video. Thank you Mr Jeffrey.

  • @ImStormFTW
    @ImStormFTW 8 років тому +8

    Thank you! I'm doing this in school rn so this is a big help! :D

  • @lalayatem3758
    @lalayatem3758 6 років тому +1

    Thank you sooo much for this video, I finally understand quadratic sequences, you explain them so well!

  • @kylegraham-west1632
    @kylegraham-west1632 8 років тому +3

    sir i swear you deserve more subs

  • @hinsonhau9544
    @hinsonhau9544 4 роки тому +3

    love this video, questions well explained, this channel is highly recommended by an Asian

  • @chaiweiting
    @chaiweiting 4 роки тому +1

    Very clear examples. Thanks a lot!

  • @raiturner2132
    @raiturner2132 7 років тому +6

    You’re a legend

  • @danishmobeen7396
    @danishmobeen7396 5 років тому +1

    Excellent video 👍👍👍

  • @zyadmustapha5354
    @zyadmustapha5354 4 роки тому +1

    thank you so much very helpful. didn't understand until now. Work for lockdown XD

  • @stizzy6695
    @stizzy6695 8 років тому +4

    great sir 👍👍

  • @مسلسلاتعربيةمنوعة-ث9خ

    THANK YOU SOOOO MUCH. helped a lot!!

  • @omar1737
    @omar1737 5 років тому +1

    This is really helpful. Thank you.

  • @petrosfore8877
    @petrosfore8877 2 роки тому +1

    Thanks mate. On point there.

  • @lynolee6116
    @lynolee6116 3 роки тому

    I got it with a few slips of the tongue at the end with the second example 😜. It's not confusing and I believe most will get it. Thanx.

  • @SavageSwan25
    @SavageSwan25 6 років тому +1

    God! Finally i understand (I'm risky when it comes to algebra) so thank you so much :D

  • @leslieakirabona3397
    @leslieakirabona3397 6 років тому +3

    Thank you so much

  • @chemistrytutorvideos3801
    @chemistrytutorvideos3801 6 років тому +1

    Thanks alot .
    It was really helpful

  • @BSyahirahMusa
    @BSyahirahMusa 7 років тому +3

    Thankyou you're awesome!

  • @willlanham9681
    @willlanham9681 Рік тому

    Thanks Mr Jeffery :D

  • @MuhammadKashifJamal-TCHRBSSK
    @MuhammadKashifJamal-TCHRBSSK 4 роки тому +2

    bravo

  • @GastricIssuesFartman
    @GastricIssuesFartman 5 років тому +1

    LIFE SAVER OMG

  • @hotcocoaproduction
    @hotcocoaproduction 5 років тому

    How do you get +1 in 14:42

    • @MrJefferyMaths
      @MrJefferyMaths  5 років тому +1

      Cayden C. It’s the nth term for the linear sequence of the difference between the 1/2n^2 sequence and the actual sequence. Watch videos on linear nth term if you’re not sure.

    • @hotcocoaproduction
      @hotcocoaproduction 5 років тому +2

      MrJefferyMaths Apreciate it!

  • @masq3078
    @masq3078 5 років тому +1

    Thank you alot you relly help me 👏

  • @chemistrytutorvideos3801
    @chemistrytutorvideos3801 6 років тому +1

    Thanks you saved me

  • @MSC1415
    @MSC1415 7 років тому +2

    omg thanks m8. ur awesome

  • @speaktoclair
    @speaktoclair 5 років тому +1

    Excellent video. Last term on (e) should be 54.

  • @ryanadams2747
    @ryanadams2747 7 років тому +1

    Thank you so much!

  • @theresapryor4529
    @theresapryor4529 7 років тому +2

    6.11.17.Mat125 at Salemu.edu
    none of the 13 students & instructor E. Asher has NO notion on how to do the Quadratic Sequences that was provided here in this video

    • @MrJefferyMaths
      @MrJefferyMaths  7 років тому

      theresa-catherynne pryor I'm confused as to what you mean?

  • @noyney6719
    @noyney6719 4 роки тому

    THANK YOU BIGMAN

  • @nicamagdalenemendoza2483
    @nicamagdalenemendoza2483 4 роки тому

    question why is it -5n not +5n

  • @mustansirtinwala7763
    @mustansirtinwala7763 6 років тому +5

    im still stuck (im bad at maths)

  • @davidadekoya5605
    @davidadekoya5605 4 роки тому +1

    i think something is wrong question E . the last term is 51 instead of 54

  • @nicamagdalenemendoza2483
    @nicamagdalenemendoza2483 4 роки тому +1

    in question e. i believe 51 should be 54 because when i computed the second diff. +6 +6 +3 this is what ive found sorry if im wrong

  • @DrawForTheGrind
    @DrawForTheGrind 3 роки тому

    When he says you can use a calculator but you are in year 4:D

  • @alexbutterboy9807
    @alexbutterboy9807 4 роки тому

    This one also helped

  • @an3ur1n29
    @an3ur1n29 6 років тому

    Thank you so mucih

  • @4niteedits731
    @4niteedits731 7 років тому +2

    Hi sir, how is The Boswells School going . I am your old year 11 student. I like the way u teach in the videos keep making same videos thank you.

  • @AbhijitBhattacharyaju
    @AbhijitBhattacharyaju 4 роки тому +1

    You should have talked about
    1) why it’s always quadratic if 2nd difference is constant( This comes from differentiation and we can extend it to nth power)
    2) why 2nd difference is divided by 2 for co-efficient of n^2(it comes from integration)
    Now the differentiation and Integration I mentioned are not in continuous domain but in discrete domain. You can go through “difference equations” to understand calculus in discrete domain.

    • @MrJefferyMaths
      @MrJefferyMaths  4 роки тому +1

      Abhijit Bhattacharya this is for GCSE, babes.

    • @AbhijitBhattacharyaju
      @AbhijitBhattacharyaju 4 роки тому

      MrJefferyMaths oh ok . But concept like this should be told why one needs to do this instead of just doing it. Some intuition must be given.

  • @ZestyGecko7
    @ZestyGecko7 4 роки тому +1

    Such a great video! Don't you agree?

    • @benhayes423
      @benhayes423 4 роки тому

      nah mcfc> varchester united

  • @dianadouglas311
    @dianadouglas311 4 роки тому +1

    I think the 5th term for e) should be 54 not 51. Does anyone agree?

  • @benhayes423
    @benhayes423 4 роки тому

    GOAT

  • @EnvoyPlayz
    @EnvoyPlayz 5 років тому +1

    Good explanation ty

  • @Alaia1420
    @Alaia1420 2 роки тому

    Last ques o.5 -0.5=0
    Therefore difference should be 0 instead of 1

  • @noahhunter06
    @noahhunter06 4 роки тому +1

    absloute legand

  • @ethanlee3033
    @ethanlee3033 5 років тому +1

    Ugh. Y does no one explain the explanations, like y u divide it by 2? I already knew how to do this but idk why u divide the 2nd diff by 2

    • @cearun957
      @cearun957 4 роки тому

      u said it the secind diff is devided by two bc IT IS the second diff

  • @katiedonne3397
    @katiedonne3397 6 років тому +4

    For question e I think the fifth term should be 54, not 51

  • @ibraheemali2830
    @ibraheemali2830 6 років тому

    Yo Jeff

  • @praneethparuchuri1853
    @praneethparuchuri1853 5 років тому

    thank you a lot for explain and it is very easy for me
    can you give you mailadders for me if i have any dout

  • @paariztd8878
    @paariztd8878 4 роки тому

    It is far more make sense.

  • @adonaichigwende7529
    @adonaichigwende7529 4 роки тому

    Sir the difference btwn -1.5 and -3 is not -1.5.It is actually positive 1.5.
    😤