Question: how to re-arrange a polynomial?

Hello,

 

When I multiplify some terms like

 

(x+k-n+5)*(x-3k+n^2+2)

 

I get a long expression. Nevertheses, I would like to rearrange first according to the power of k (in other cases, according to n). Is there some command to rearrange my polynomials?

 

Thanks for you attention,

 

Jean-Jacques

 

 

 

 

 

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