Les quel de ces calcul sont impossible ? svp Exercice 1 : Développer si possible et réduire les expressions suivantes (6 points).
A = 2 + (x -3) – (2 – 3x) B = 2(4x -5) – 7( 4x -2) C = -3(1 + 2y) + 3y
D = 5 – ( - 2y + 3) E = (2 + 3x)( 4x -7) F = (2x – 1)(-4x +3) + 2(3x -1)
A = 2 + (x -3) – (2 – 3x) B = 2(4x -5) – 7( 4x -2) C = -3(1 + 2y) + 3y
D = 5 – ( - 2y + 3) E = (2 + 3x)( 4x -7) F = (2x – 1)(-4x +3) + 2(3x -1)
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