Respuesta:
(x + 2)2 - 4(x + 1)
= 2x + 4 - 4 (x+1)
= 2x + 4 - 4 (x + 1)
= 2x + 4 - 4x - 4
= - 2x
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Respuesta:
(x + 2)2 - 4(x + 1)
= 2x + 4 - 4 (x+1)
= 2x + 4 - 4 (x + 1)
= 2x + 4 - 4x - 4
= - 2x