Respuesta :

Answer: B

Step-by-step explanation:

  [tex]\frac{1}{4}x^{2}[/tex] + 5 = 0

= 4([tex]\frac{1}{4}x^{2}[/tex] + 5) = 4(0)

= x² + 20 = 0

= x² + 0x + 20 = 0

 a=1, b=0, c=20