February 2021 0 51 Report
C simple mais je ne comprend pas ;-) je n'ais pas compris pour mon 3eme exo le A regarder Exercice 3 : x et y désignent des nombres tels que x y = - 4 et x – y = 8,5.
Calculer A = ( x – 1 ) ( y + 1 ) et B = ( 2 x + 1 ) ( 2 y – 1 )
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