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Sagot :

VINS

bonjour

A =  - 14 y + 7

B = 6 a + 5 b - c - 3 b + 4 a + c

B =  10 a +  2 b

C = - 10 x + 14 x² - 6 x² + 9 x + 3 x²

C =  11 x² - x  

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