I have trouble in determining Galois group.(adsbygoogle = window.adsbygoogle || []).push({});

Can anyone help me with the following question:

how to determine the Galois group of (x^2-2)(x^2-3)(x^2-5), determine all the subfields of the splitting field of this polynomial?

how to determine the elements of the galois group of x^p-2 for p is prime.

Thanks a lot!

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# How to determine galois group?

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