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Sagot :

VINS

bonjour

A = 2 ( a + 5 ) = 2 a + 10

B = - 4 ( - 3  + x ) =  12 - 4 x

C =  2 y ( 8 + y ) =  16 y + 2 y²

D = - 2a ( 3 - 8 a)   =  - 6 a + 16 a²  

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