Question

(a+b+c)2 + (a-b-c) ²
+​

Answer 1

Answer:

just open the identity...

Answer 2

Answer:

$Heya \: user$................❤

Using formula, u can solve it easily.

(a + b +c) ^2 + ( a - b -c) ^2

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

= 3a^2 + 3b^2 + 3c^2 +4ab

Hope it’s helpful....... ☺