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Sagot :

VINS

bonjour

A =  6 x² + 5 x + 21 - 2 x² - 2 x +1

A =  4 x² + 3 x + 22

B  = 3 x + 4 + 3 - x - 5 x - 2

b  =  - 3 x + 5

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