Question

the value of (a+b)² + (a-b)² is ____.​

Answer 1

Step-by-step explanation:

Hope this will help you out :)

Answer 2

Answer:

2(a2+b2)

Step-by-step explanation:

(a+b)2= a2+2ab+b2

(a-b)2= a2-2ab+b2

therefore, (a+b)2 + (a-b)2=

a2+2ab+b2+a2-2ab+b2=

2a2+ 2b2=

2(a2+b2)