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Sagot :

VINS

[tex]bonjour\\\\\\A = 18 x - 21 - 5 x + 8 \\A = 13 x - 13\\\\B = 12x - 3 x^{2} - 4 + x + 7 \\B = - 3 x^{2} + 13 x + 3 \\\\[/tex]

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