How to find the nth term of a quadratic sequence in 30 seconds IGCSE maths

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Quadratic Sequences IGCSE MATHS | Learn quadratic Sequences in 1 minutes
When the second difference is constant then we can say sequence is a quadratic sequence
nth term = an^2 + bn + c
second difference = 2a
first difference= 3a + b
First term = a+ b + c
we need to solve in order to get the value of a , b , c
and then put the values

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Занимательная химия
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