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Sagot :

VINS

bonjour

A = - 2  + 4 x² - 5 x - 7 + 2 - 6 x² - 2 x  - 8

A =   -  2 x² - 7 x - 15

B   = 8 - 2 x² + x - 4 + 10 - 5 + 6 x² + 6 x

B  =  4 x² + 7 x + 9

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