Respuesta :

devishri1977

Answer:

A

Step-by-step explanation:

x² + 16 = 0

x² = - 16

x² = i² * 4²            {i²  = -1}

x² = (4i)²

x=√(4i)²

x=±4i

x² + 16 = (x + 4i)(x - 4i)