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Number sequence

What is the nth term of
22, 27, 42, 67
Tell the steps and why these steps have been taken?
I will be thankful for your help.
Original post by Zohair hassan
What is the nth term of
22, 27, 42, 67
Tell the steps and why these steps have been taken?
I will be thankful for your help.


Just have a look at a similar problem and apply the same approach to your problem. We aren't going to do this Q for you.

One example can be seen here by a simple and quick youtube search on nth term of a quadratic sequence:

[video="youtube;dFTRZONntq8"]https://www.youtube.com/watch?v=dFTRZONntq8[/video]
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Avatar for Notnek
Notnek
21
Original post by Zohair hassan
What is the nth term of
22, 27, 42, 67
Tell the steps and why these steps have been taken?
I will be thankful for your help.

The first differences are 5, 15, 25, ...

And the second differences are 10, 10, ...

The second difference is constant which means this is a quadratic sequence.

Have you ever found nth terms of quadratic sequence before? If you have, please have a go and post all your working if you get stuck. If you haven't then I recommend watching a video e.g. this one.

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