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Date: Mon, 14 Aug 2023 19:52:42 +0200
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Le 14/08/2023 à 14:45, Richard Hachel a écrit :
> ab+a=32
> ab+b=35

> Comment feriez-vous?

trivial:
#2-#1: b-a = 3 → b = a+3

injecte dans #1: a(a+4)=32 → a² +4a -32 = 0 → d'=4+32 → a = -2 +- 6

les solutions sont donc (a,b) = (-8,-5)  ou  (4, 7)


mais pourquoi ces quizz basiques répétitifs ? tu te sers de nos réponses 
pour épater la galerie sur un autre site ?

-- 
Fabrice