Question

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

1)4AB
2)-4AB
3)2AB

what is the answer ​

Answer 1

Answer:

1) 4AB

Explanation:

hope this helps you

Answer 2

Answer:

Option 1. 4AB

Explanation:

(a+b)2−(a−b)2

=((a+b)+(a−b))((a+b)−(a−b))

Parenthesis for substitution emphasis

=(a+b+a−b)(a+b−a+b)

=(a+a)(b+b)

=(2a)(2b)

=4ab