Respuesta :

(a+b)² = a² + 2ab +b²

if ab = 2 , then a = 2/b and ab =2 in the above equation
(a+a/2)² = a² + 2 +b²

(3a/2)² = a²+b²+2

9a²/4 - 2 = a²+b² =

Answer:

6

Step-by-step explanation: