Question

The value of (a + b)square - (a - b)square is​

Answer 1

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

= 4ab

Answer 2

Answer: 4ab

Step-by-step explanation:

$(a + b)^{2} - (a - b)^{2}$ = $(a^{2} +b^{2} +2ab )$  -  $(a^{2} + b^{2} - 2ab)$

                            = $a^{2} +b^{2} +2ab -a^{2} -b^{2} +2ab$    On Cancelling,

                           = 4ab

Thank U : )