Résoudre les équations suivants 5)3x² = 8

6) 2 x ² + 3 = 0

7) 3 x ² - 14 = 0

8) x (x – 2) = x ² + 16

9) -6 x ²+ 5 = 4 x ² - 3

10) (x + 2)² = (x + 3)(x - 5)

11) (x - 1)(x + 1) = (x + 2)(x + 3)

12) 8x²- 7x + 11 = -4x ² - 5 + (12x – 3)(x + 2)


svp aidez moi c pour demain ! merci ! ​
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