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Bonjour,quelqu’un pourrait m’aider svp?
1. A = 27 x2 – 27x + 27
2. B = 9x(x-3) +9x(10+2x)
3. C = (2x + 1)(8 + x) - (3x - 1)(2x + 1)
4. D= (11x - 32 + (11x - 3)(5 + 9x)

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