::GymQuiz-117::

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demo1

box1+

Equations produit nul (niveau difficile)

box2

box3

box4

Equations produit nul (niveau difficile) ⟳

✔ (x - 2)(5x + 1) = 0 ➡ x = 2 et x = -1/5
✔ (2x + 3)(6 - x) = 0 ➡ x = -3/2 et x = 6
✔ (3a - 8)(a + 9) = 0 ➡ a = 8/3 et a = -9
✔ (k - 7)(8k + 2) = 0 ➡ k = 7 et k = -1/4
✔ (3x - 4)(x + 5) = 0 ➡ x = 4/3 et x = -5