GCSE Secondary Maths Age 13-17 - Algebra: Sequences - Explained

The video tutorial covers Question 24, focusing on sequences. Part A involves finding the next term in a given sequence by analyzing the differences between terms. The next term is calculated to be 72. Part B introduces a different sequence defined by the formula 3n squared minus 10, and the task is to find the fifth term. By substituting n=5 into the formula, the fifth term is calculated to be 65. Each part of the question is worth one mark.

How do you find the differences between the terms in the sequence?

What is the next term in the sequence: 2, 8, 18, 32, 50?

What is the formula for the n-th term of the sequence mentioned?

Explain the process of substituting n into the formula to find the term.

Calculate the fifth term of the sequence defined by the formula 3n squared minus 10.