How to determine the nth term of a quadratic sequence
This question is obtained from the Mathematics grade 12 study guide Unit 3 (Number patterns, sequences and series) page 46.
Study guide download link : https://www.education.gov.za/Portals/0/Documents/Manuals/MTG%20Math%20Gr%2012%20Web.pdf?ver=2015-02-25-211420-000
Following guidelines as stipulated by the Department of Basic Education
CAPS: FET (Curriculum assessment policy statement: Further Education and Training