Question

Solve 5 questions of this identity.
(a+b)=a^2+b^2+2ab

Please answer my question​

Answer 1

=> Identity

=> (a+b)²=a²+b²+2ab

=> opening brackets.

=> (a+b)(a+b)= (a+b)2

=>a²+ab+ab+b²

=> a²+b²+2ab

Proved!

Answer 2

Answer:

see the above pic hope you understand