Question

(a+b+c) ²– (a - b-c)²​

Answer 1

Step-by-step explanation:

It is correct and i hope you understand it

Answer 2

Answer:

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

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

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

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

2b^2+2c^2+4ab+4bc+4ca  } answer