Question

factoris (x^2-4x)(x^2-4x-1)-20​

Answer 1

Answer:

hola mate.

see the attachment

thanks

Answer 2

(x^2-4x) (x^2-4x-1)-20

x^2(x^2-4x^2-1) -4x(x^2-4x-1)-20

x^4-4x^4-x^2-4x^3+16x^2-4x-20

x^2-8x^7-20.