Question

Simplify Using Formula
(a+2m+ n)^2 + (a-2m + n)^2
​

Answer 1

Step-by-step explanation:

since both terms are perfect square , factor using the difference square formula a²‐b²=(a+b)(a‐b)a²‐b²=(a+b)(a‐b)where a=m a=mand b=n b=n.