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Sagot :

Bonsoir

A=-6x² + 9x+ 10x - 15

A=-6x²+19x - 15

B = 4x² - 1

C = - 2x - 8 + x²+ 4x

C = x² + 2x - 8

D = 4x- 24-3x²+18x

D = - 3x²+22x - 24

E= -15x² -10x - 6x - 4

E = - 15x² - 16x - 4

F = - 6x + 21 - 2x²+ 7x

F = - 2x² + x + 21

G = 9x²- 30x + 25.

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