Respuesta :

Answer:

c. b < 0

Step-by-step explanation:

l (x - 3)^2 - 4 l = l x^2 -6x + 9 - 4l

l x^2 - 6x + 5 l = b

If b < 0, the equation cannot be factored, there will not be real solution.

Therefore, answer is c. b< 0

Hope this will helpful.

Thank you.