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Sagot :

8x-(3x+5)*2
8x-(6x+10)
8x-6x-10
2x-10

Bonjour,

distributivité:

(3x+5)*2

3x*2 = 6x
5*2 = 10

8x-(6x +10)

On ôte les parenthèses (attention  signe -)

-> 8x-6x -10

=> 2x -10

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