Query4All.com
Index of/4
Data generated from past analysis.
https://www.mathcentre.ac.uk/resources/uploaded/mc-ty-indicespowers-2009-1.pdf
https://www.intmath.com/numbers/4-powers-roots-radicals.php
https://www.mathsteacher.com.au/year8/ch07_indices/01_ind/ind.htm
https://www.greenemath.com/Algebra2/54/RadicalExpressionsLesson.html
https://www.mathcelebrity.com/index-form-calculator.php
https://thirdspacelearning.com/gcse-maths/algebra/laws-of-indices/
https://revisionmaths.com/advanced-level-maths-revision/pure-maths/algebra/indices
https://www.vedantu.com/maths/index-notation
https://thirdspacelearning.com/gcse-maths/algebra/indices-with-brackets/