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