demo1
Equations produit nul (niveau facile) ⟳
✔ (x - 4)(x + 5) = 0 ➡ x = 4 et x = -5
✔ (x + 4)(x - 9) = 0 ➡ x = -4 et x = 9
✔ (x + 2)(x - 7) = 0 ➡ x = -2 et x = 7
✔ (x - 14)(x + 2) = 0 ➡ x = 14 et x = -2
Equations produit nul (niveau facile) ⟳
✔ (x - 4)(x + 5) = 0 ➡ x = 4 et x = -5
✔ (x + 4)(x - 9) = 0 ➡ x = -4 et x = 9
✔ (x + 2)(x - 7) = 0 ➡ x = -2 et x = 7
✔ (x - 14)(x + 2) = 0 ➡ x = 14 et x = -2