Question

(a-2b-4c) (a^2+4b^2+16c^2+2ab-8bc+4ac)​

Answer 1

Answer:

(a-2b-4c)^2

Step-by-step explanation:

(a+b+c)^2=(a+b+c+)(a^2+b^2+c^2+ab+bc+ac)

given the question;  ( in the format of above equation)

 (a-2b-4c) (a^2+4b^2+16c^2+2ab-8bc+4ac)​

=(a-2b-4c)^2