Question

( a+b) square - (a-b) square​

Answer 1

Question:

(a+b)²-(a-b)²

Answer:

(a+b)²-(a-b)²

=a²+2ab+b²-a²+2ab-b²

=4ab

Answer 2

Answer:

4ab

Step-by-step explanation:

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

= [(a+b)+(a-b)][(a+b)-(a-b)]

=[2a][(a+b) -a+b]

=[2a][2b]

=4ab