bonjour, merci !!!!!!!!!!!!!!!!
- 6 = - 3 + x
- x = - 3 + 6
- x = 3
x = - 3
- 5 - 3. x = - 17
- 3 x = - 17 + 5
- 3 x = - 12
x = 4
( - x - 1 ) ( 2 + x ) - 6 x + 6 + x² = 0
- 2 x - x² - 2 - x - 6 x + 6 + x² = 0
- 9 x = - 6 + 2
- 9 x = - 4
x = 4/9
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bonjour, merci !!!!!!!!!!!!!!!!
- 6 = - 3 + x
- x = - 3 + 6
- x = 3
x = - 3
- 5 - 3. x = - 17
- 3 x = - 17 + 5
- 3 x = - 12
x = 4
( - x - 1 ) ( 2 + x ) - 6 x + 6 + x² = 0
- 2 x - x² - 2 - x - 6 x + 6 + x² = 0
- 9 x = - 6 + 2
- 9 x = - 4
x = 4/9