Question

Simplify: (a + b + c)² - (a - b - c)²


Please solve this. ​

Answer 1

Answer:

Step-by-step explanation:

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

4ab + 4ac