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# A very basic question involving indices! watch

1. Hello there,

Sorry to taint the Maths forum with an annoying thread but I'm utterly confused here!

The question is:

Express

p^3(p^2-p^-3)

its its simplest form.

If anyone could explain this to me, I'd be extremely grateful!

Thanks kindly.
2. (Original post by Habitué)
Hello there,

Sorry to taint the Maths forum with an annoying thread but I'm utterly confused here!

The question is:

Express

p^3(p^2-p^-3)

its its simplest form.

If anyone could explain this to me, I'd be extremely grateful!

Thanks kindly.
, also, for any number, a,

3. p^2
4. (Original post by dknt)
, also, for any number, a,

Thank you very much!
5. expand the bracket.

=

..........................=

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