Réponse :
(x-(-x)+5) x 4
= (x + x + 5 )x4
= 4(2x + 5)
= 8x + 20
prog 2:
2(2x + 3) - 26
= 4x + 6 - 26
= 4x - 20
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Réponse :
(x-(-x)+5) x 4
= (x + x + 5 )x4
= 4(2x + 5)
= 8x + 20
prog 2:
2(2x + 3) - 26
= 4x + 6 - 26
= 4x - 20