February 2021 0 121 Report
Bjr , pouvez vous m'aider svp : 2) Calculer X = 4a - 3b + 2c - 7d puis Y = 3abc-9 + 2c
pour a = -4 , b = 6 , c = -5 et d = -7 .

1) A= -9 + 5(11-13) B= 19 - 2,1 x 7,4 - 213 : (-15)
C= (-3 - 6) (-2-15) D = (-3,9 - 8 ) - 5 - (3,9-8) (-5)

Merci d'avance : ) !!
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