Examlex
Factor the expression as the sum or difference of two cubes.
Contractions
The process in which muscles become shorter and tighter to perform a movement or, in the context of childbirth, the tightening and releasing of the uterus to facilitate delivery.
Punctuation Mark
Symbols used in writing that clarify meaning by indicating separation of words into sentences and clauses and phrases.
Letters
Written symbols or characters that are used to create words in an alphabet.
Letterhead
The heading at the top of a sheet of letter paper, usually consisting of a name and an address.
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