Indices - simplify with a power of a half - GCSE maths

This video is all about algebraic expressions and forms part of that playlist. I've also added it to GCSE higher revision.

The question is fairly straightforward, although you'll need to remember the rules of indices and a power of a half means a square root.


I hope the video helps and please do leave a comment - thanks!

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The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision.

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[lxne]

24 seconds into the video and i already understand

[theophiluskilvington]

Thanks.
But I want to ask how do I prove to my younger brother that any number with an exponent half means the square root of that number?

[laurawojcikova]

how did you get 4 when working out (16)^1/2 ??