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Sagot :

Réponse:

bonjour

[tex]b = (2x + 3)(x - 2) \\ = 2x \times x - 2x \times 2 + 3 \times x - 3 \times 2 \\ = {2x}^{2} - 4x + 3x - 6 \\ = {2x}^{2} - x - 6[/tex]

bonne année

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