Root | root math
Root-mathworddefinition-MathOpenReference1.RootofanumberTherootofanumberxisanothernumber,whichwhenmultipliedbyitselfagivennumberoftimes,equalsx.Forexamplethesecondrootof9is3,because3x3=9.Thesecondrootisusuallycalledthesquareroot.ThethirdrootissusuallycalledthecuberootSeeRoot(ofanumber)[1].2.RootsofapolynomialTherootsofapolynomialarethevaluesofthevariablethatcausethepolynomialtoevaluatetozero.Forexampletherootsofare+2and-2.SeeRootsofapolynomial[2].(C)2011CopyrightMathOpenReference.Allrightsre...
Root - math word definition - Math Open Reference 1. Root of a numberThe root of a number x is another number, which when multiplied by itself a given number of times, equals x. For example the second root of 9 is 3, because 3x3 = 9.
The second root is usually called the square root. The third root is susually called the cube root See Root (of a number)[1]. 2. Roots of a polynomialThe roots of a polynomial are the values of the variable that cause the polynomial to evaluate to zero. For example the roots of are +2 and -2.
See Roots of a polynomial[2].
(C) 2011 Copyright Math Open Reference. All rights reserved
References Root (of a number) (www.mathopenref.com) Roots of a polynomial (www.mathopenref.com)