Question

those who know the answer kindly plz answer it​

Answer 1

Answer:

2(a+b+c){(a+b)2 + (b+c)2 + (c+a)2 - (a+b)(b+c) - (b+c)(c+a) - (c+a)(a+b)} please mark this the brainliest and follow me

it is an identity mate

Answer 2

Step-by-step explanation:

the answer in this picture