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==Etymology==
The adjective ''quadratic'' comes from the [[Latin]] word ''[[wikt:en:quadratum#Latin|quadrātum]]'' ("[[square (geometry)|square]]"). A term raised to the second power like {{math|''x''<sup>2</sup>}} is called a [[square (algebra)|square]] in algebra because it is the area of a ''square'' with side {{math|''x''}}.
==Terminology==
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