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Sagot :

Bonjour

A = 5x + 2 - 6x - 4

A = - x - 2

B = - 5x + 3 + 4x - 5

B = - x - 2

C = - 3x - 4 + 8x - 3

C = 5x - 7

D = 5x² + 3 - 8x² + 2x - 3

D = - 3x² + 2x

E = 6x² - 3x + 5 - 4x² - 3x - 4

E = 2x² - 6x + 1.

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