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Sagot :

VINS

bonjour

F=2x-3+8-4x+x²

= x² - 2 x + 5

G=3x+9-7x+8+4x

  = 17

H=8x-3x×x+3-15×x+15×x+11x²-6+2x-5x²

=   8 x - 3 x² + 3 - 15 x + 15 x + 11 x² - 6 + 2 x - 5 x²

=  3 x² - 5 x - 3

Réponse:

F= 2x-3+8-4x+x²

= 2x+5-4x+x²

= -2x+5+x²

= x²-2x+5

G= 3x+9-7x+8+4x

= 3x+17-7x+4x

= 17

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