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Sagot :

Bonjour

Supprime les parenthèses puis réduis chaque expression.​

D = (4x + 2) + (- 6x - 2)

D = 4x + 2 - 6x - 2

D = 4x - 6x + 2 - 2

D = - 2x

E = - (- 3x - 1) + (x - 3)

E = 3x + 1 + x - 3

E = 3x + x + 1 - 3

E = 4x - 2

F = 8x - (5x + 2) + (3 - 4x)

F = 8x - 5x - 2 + 3 - 4x

F = 8x - 5x - 4x - 2 + 3

F = - x + 1

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