Question

formula of a^2 + b^2​

Answer 1

$\huge\bf { \red A \green N \pink S\blue W \orange E \purple R \green{...}}$

(a+b)^2=a^2+b^2+2ab

Answer 2

There is a formula to factorise (a2−b2a2−b2) but not for (a2+b2)(a2+b2) factorization.

But commonly (a2+b2)(a2+b2) written as:

(a+b)2−2ab(a+b)2−2ab

OR

(a−b)2+2ab(a−b)2+2ab

OR

12×[(a+b)212×[(a+b)2+(a−b)2]