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Sagot :

Bonjour,

Développer:

A= 7(5-k)= 35-7k

B= (5-a)4= 20-4a

C= 3(11-a+b)= 33-3a+3b

D= s(13-p-m)= 13s-sp-sm

E= (5+a)a= 5a+a²

F= (1-m-t)t= t-mt-t²

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