Répondre :
bonsoir
1) +(-3x-4)-5 = - 3 x - 4 - 5 = - 3 x - 9
2) -(+4x-7)+17x = - 4 x + 7 + 17 x = 13 x + 7
3) 5x ² -(4x-17)-11 = 5 x² - 4 x + 17 - 11 = 5 x² - 4 x + 6
4) 10-(-4-5x+2)+(3x-2) = 10 + 4 + 5 x - 2 + 3 x - 2 = 8 x + 10
bonne soirée
bonsoir
1) +(-3x-4)-5 = - 3 x - 4 - 5 = - 3 x - 9
2) -(+4x-7)+17x = - 4 x + 7 + 17 x = 13 x + 7
3) 5x ² -(4x-17)-11 = 5 x² - 4 x + 17 - 11 = 5 x² - 4 x + 6
4) 10-(-4-5x+2)+(3x-2) = 10 + 4 + 5 x - 2 + 3 x - 2 = 8 x + 10
bonne soirée