Question

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

Answer 1

Answer:

Step-by-step explanation:

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

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

A^2+2AB+B^2-B^2+2AB-A^2

2AB+2AB

4AB