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Sagot :

VINS

bonjour

A = - 15 + 20 x + 5 x - 2

 =  25 x - 17

B  = 12 - 9 x - 8 x + 6 x²

  = 6 x² - 17 x + 12

C  = 289 x² - 544 x + 256

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