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[HP Prime] expand(collect(...)) Is there any better way?

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HP Prime
macOS 10.13 High Sierra

I've been summing 3rd grade polynomials and the resulting expressions been growing and growing...


I expected to have for answer a simple 3rd grad polynomial as well, but I couldn't have it.


The solution I found has been doing "expand(collect( cp0 ))", where cp0 is the sum polynomial itself. Then I've got what I wanted.


Would there be any better (or "cleanner") way to have it? Would it be possible to configure CAS to answer this way directly?


poly 01.png


Thank you.


Ciro Bruno.




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