Question

hey guys
(a-2b-4c)^2
expand it
plese fast​

Answer 1

Answer:

a^2+b^2+c^2-2ab+2bc-2ca

here a=a

b=2b

c=4c

expand it

hope it helps u

Answer 2

Answer:

your answer is attached above.

Step-by-step explanation:

Here , i have use a identity..

And i take the negative in the bracket...

hope this help you...