Question

(a+b)2+2(a+b)(a-b)+(a-b)2​

Answer 1

Step-by-step explanation:

》(2a + 2b) + (2) (a^2 - b^2) + (2 - 2b)

》(2a) + (2a^2 - 2b^2) + (2)

》2 (a + a^2 - b^2 + 1)

》May this doubt be clarified by me..

Answer 2

Not understanding your Q. sorry