Quadratic Sequences - How to find the formula for the n-th term

Quadratic sequences, how to find the formula for the n-th terlm, using the difference method.
Quadratic sequences of numbers are characterized by the fact that the difference between terms always changes by the same amount.
Consequently, the difference between "the differences between the sequence's terms" is always the same. We say that the second difference is constant.

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[ceriwingkle]

OKAY WHAT THIS WORKED WELL FOR ME THANK YOU SO MUCH FOR THIS VIDEO!!!!


I spent hours trying to figure this out, but this video helped me a lot!!! Thanks again!

[tonyserrano]

Thank you, it was really clear and i didnt get confused in any part of the whole explanation and whole video, this was a big help.

[magpiestudent]

This really helped me to understand finding the nth term of a quadratic sequence. It is one of the best videos out there on the subject, thank you so much.

[lilbakrill]

THANK YOU!!! I was pouring over a math problem for hours and feeling so frustrated, then I watched this video, plugged my numbers in, and there it was, so grateful.

[mlbb_not_official]

Thanks a lot... Went through many videos but never understood it until I watched your video

[kalimbwekalimbwe]

You are the first person to make me understand after watching so many videos. May you be blessed!!!

[aishani]

I have an exam in like 2 Hrs and I have to go to school and write it! I asked one of my friends to help me out with this particular sequence but he was just as confused as me lol. But I am actually glad that I found this video. Thank you so much for the hard work you put into it and to be honest your doing a great job! You are doing amazing and please keep going. Thank you :)

[humidifier]

This is 10x easier then the method my teacher taught me, thank you!!

[martha]

Thank you, you have explained this in such simple terms, I truly appreciate your help

[charneschiu]

AWESOME!!!! THANK YOU!!! The best explanation I saw. I spent 3hrs trying to help my son's 7th grade homework. This is such a great video and a relief. Good Karma and Great blessings to you. Subscribed!

[dogalraxtheplumber]

This was such a massive help. Outstanding explanation; thank you!

[abhigyansrivastava]

Thank YOU SO
I WAS SEARCHING FOR AN IDEAL FORMULA FOR THE PAST 6 HRS!!!!
Some Videos were fooling me by giving ineffective Formulae!!!!
Thanks Genious Ranford

[aorm]

thank you so much!!! this is easier to understand than most videos I've watched

[msryamayomide]

Thank you so much Mr. Radford this really helped me and i know i understand this for good.

[iankim]

This Video helped me so much !! Thank YOUU

[MohammedAkram-ibmy]

Amazing explanation. Thank you so much John.

[hidayataiman]

Thank you so much Mr.radford video has helped me with my O levels😂😂😂

[rajkishorenemchand]

Very well explained. Easy to understand.

[smrpkrl]

why 2a= second difference
a+b+c= first term and so on? please explain on this

[zoeturner]

This is so helpful!! Thank you so so so much!!