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Aplicas
/a/ = x ⇔ a = x v a = - x
/x + 2/ = 4
x + 2 = 4 v x + 2 = - 4
x = 4 - 2 v x = - 4 - 2
x = 2 v x = - 6
Soluciones.
(2 , - 6)
El producto = (2)(- 6) = - 12
Respuesta.
- 12