bonjour vous pouvez m'aider svp 5x2 - 8x2 = .. -5x - 8x = ... – 5x² + 8x² 4 x (6x - 4) = -6x (4x + 4) = - 4 x (6x - 4) = 6 x (4x - 4) = 2 x (6x + 7) = 6 x (4x

Bonsoir

5x² - 8x² = - 3 x²

-5x - 8x = - 13 x

– 5x² + 8x² 4 x (6x - 4) =  incomplet manque signe entre  8 x² et 4

-6x (4x + 4) =  - 24 x²  - 24 x

- 4 x (6x - 4) =  - 24 x² + 16

6 x (4x - 4) =  24 x² - 24 x

2 x (6x + 7) =  12 x² + 14 x

6 x (4x + 4) = 24 x² + 24

4 x (6x + 4) =  24 x² + 16

5x - 8x =  - 3 x

-5x2 - 8x2 =  - 13 x²

-5x + 8x =  3 x

5x + 8x =  13 x

-4 X (6x + 4) =  - 24 x - 16

5x X 8x = 40 x²

- 6x (44 - 4) =  - 264 x + 24

5x² + 8x² =  13 x²

-24 247 52 9  ??