Expand
Expand[
expr
] expands out products and positive integer powers in expr.
Expand[
expr
,
patt
] leaves unexpanded any parts of expr that are free of the pattern patt.
Expand works only on positive integer powers.
Expand applies only to the top level in expr.
Expand[
expr
,
Modulus->
p
] expands expr reducing the result modulo p.
See The Mathematica Book on the web:Section 1.4.3, Section 1.4.5 and Section 3.3.1.
See also: Series, Factor, TrigExpand, PowerExpand.
Further Examples
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