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Sagot :

Exercice 6:

E= 2x + (1 - 6x)

 = 2x - 1 + 6x

= 2x + 6x - 1

=8x - 1

G= 3 + 4x - ( - 4x + 1)

 = 3 - 4x +4x - 1

 = 3 - 1

 = 2

F= 15 + (- 9x + 0.5 )

= 15 + 9x - 0.5

= 15 - 0.5+ 9x

= 14.5 + 9x

H= - 2x - ( -3x² + x - 6 )

= - 2x + 3x² - x + 6

= -2x - x +3x² + 6

= 3x² -3x + 6

Et j'espère t'avoir aidé

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