Use the Simplify > Expand command984VML or the Expansion FunctionsExpansion_Functions to expand a polynomial with respect to some or all of its variables.


The general objective when expanding a polynomial with respect to designated variables is to maximize the number of terms that are algebraically independent with respect to those variables.  Terms having the same degrees for all expansion variables are collected.  Non-expansion variables that occur in these collected terms are not expanded unnecessarily.  


Comprehensibility tends to decline with the number of expansion variables.  Most problems only require expanding with respect to a single variable.

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