Respuesta :

Answer: x= -1, 1, 5i, -5i

Step-by-step explanation:

f(x)=x^4+24x^2+25

f(x)=(x^2-1)(x^2+25)

x^2-1=0

x^2=1

x= -1, 1

x^2+25=0

x^2=-25

x= -5i, 5