Question

simplify the following using identities (x+y)2 - (x-y)2​

Answer 1

Answer:

4xy

Step-by-step explanation:

This is in the form of a^2 - b^2 = (a + b) * (a - b)

Thus, (x + y)^2 - (x - y)^2 = (x + y + x - y) * (x + y - x + y)

                                                   = 2x * 2y

                                                   = 4xy

Thus, (x + y)^2 - (x - y)^2 = 4xy.

Answer 2

Answer:

2x+2y-2x-2y

Answer is 4xy