Question

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

Answer 1

Step-by-step explanation:

Check the Attachment

Hope it helps

Answer 2

Answer:

4x^x+2x-20

Step-by-step explanation:

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

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

(-2x)(-2x-1)-20

4x^x+2x-20