# First Description of how to Remove Radicals from Equations

Who first described the technique of removing radicals as indicated in the answers to questions Tools for Removing Radicals from Equations and Rewrite sum of radicals equation as polynomial equation ?

When has it been described the first time and, what was the motivation? Was it actually an equation that involved square roots etc., or, has it been described as a proof, that equations involving radicals can be converted to polynomial equations?

I have already done a lot of online research without success; therefore I hope for answers from the MO community, even if the answers may be wellknown to experts in the field.

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I don't really have an answer (hence the comment), but for some publications that are possibly worth looking at, see some of the older references I cite at the very end of this 16 November 2010 ap-calculus at Math Forum and see the references I give in my answer to the math StackExchange question History of the theory of equations: John Colson. –  Dave L Renfro Aug 18 '14 at 17:03
@DaveLRenfro thanks for the pointers to further information; that is more than I hoped for. –  Manfred Weis Aug 19 '14 at 5:44