Répondre :
(2x + 1)(x - 2) + (2x + 1) - (3x - 1) - (2x + 1)x = (2x + 1) [(x - 2) - (3x - 1) - x]
= (2x + 1)(x - 2 - 3x + 1 - x)
= (2x + 1)(-3x - 1)
factoriser l'expression:
(2x+1)(x-2)+(2x+1)-(3x-1)-(2x+1)x
merciiii
(2x + 1)(x - 2) + (2x + 1) - (3x - 1) - (2x + 1)x = (2x + 1) [(x - 2) - (3x - 1) - x]
= (2x + 1)(x - 2 - 3x + 1 - x)
= (2x + 1)(-3x - 1)