Question

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

Answer 1

Answer:

4(a)^2(b)^2

we know that (a+b)^2-(a-b)^2=4ab

Answer 2

Answer

=(A^2 + B^2 + A^2 - B^2)(A^2 + B^2 - A^2 + B)

=(2AB)^2