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From: robby <me@plan.net.ivalid>
Newsgroups: fr.sci.maths
Subject: =?UTF-8?B?UmU6IFLDqXNvdWRyZSB6?=
Date: Tue, 13 Jun 2023 09:24:06 +0200
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Le 13/06/2023 à 09:21, robby a écrit :
> z / (y-x) = 1
> les réponses dans Z² sont  (-9,8) et (8,-9)

donc z = y-x = 17 ou -17
-- 
Fabrice