Question

(a + b)2 + (a - b)2 =​

Answer 1

Answer:

=a square - b square

Step-by-step explanation:

this is my answer

Answer 2

Answer:

2a²+2b²

Step-by-step explanation:

(a²+b²+2ab)+(a²+b²-2ab)

a2+b²+2ab+a²+b²-2ab

2a²+2b² (because +2ab,-2ab is elimate )