Question

The expansion of ( a + b )2

+ (a – b )2

is

a. 2ab b . 4ab c. – 4ab d. 2a2 + 2b2​

Answer 1

Answer:

2a² + 2b² is our required answer

Step-by-step explanation:

(a + b)² + (a - b)²

⇒ [a² + b² + 2ab] + [a²+b²-2ab]

⇒ 2a² + 2b²