the alternate form of: x = (a^12 - 1)/(a^2+1) should be: ...?

[DrSploc]

Okay another question I wasn't able to solve with my tutor:

the alternate form of:

x = (a^12 - 1)/(a^2+1)

should be:

x = a^10 - a^8 + a^6 - a^4 + a^2 -1

How do I get there?

 

[Deleted member 4993]

Okay another question I wasn't able to solve with my tutor:

the alternate form of:

should be:

There are several ways to do this - one is polynomial "long-hand" division.

What form is expected here?

What are the methods that you tried?

Please share your work with us ...even if you know it is wrong

If you are stuck at the beginning tell us and we'll start with the definitions.

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