Il faut replacer les équations produits-nul et les équations de type x²=a sur leurs solutions..

Les questions suivantes vont te permettre de vérifier tes connaissances sur le calcul littéral. Elles vont devenir de plus en plus difficiles. Si tu le souhaites, tu peux te servir d'une feuille de brouillon. En cas d'erreur, tu recommenceras au début...

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