Respuesta :

carlosego
The formula for perfect square is given by:
 a ^ 2 + 2ab + b ^ 2 = (a + b) ^ 2
 Therefore in this case we have:
 x2 + 8x + 16 = (x + 4) ^ 2
 Answer:
 A constant term that is necessary to complete the perfect square trinomial is:
 16

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