Question

(a+b)² + (a-b)² is equal to​

Answer 1

Answer:

$a {}^{2} + b {}^{2} + 2ab + a {}^{2} + b {}^{2} - 2ab \\ 2 {a}^{2} + 2 {b}^{2}$

Answer 2

Answer:

2a²+2b²

Step-by-step explanation:

-->(a+b)² + (a-b)²

-->(a²+2ab+b²) + (a²-2ab+b²) ......[using formula (a+b)² and (a-b)²]

--> a²+2ab+b²+a²-2ab+b²

-->a²+a²+2ab-2ab+b²+b²

-->2a²+2b²

Hope this helps........