Question

(2x/7-y/2)^2-(2x/7+y/2)^2​

Answer 1

We know that, a² - b² = (a + b) (a - b)

Here, LHS is given

a = (2x/7-y/2) and b = (2x/7+y/2)

So the answer is ( 2x/7-y/2 + 2x/7+y/2) ( 2x/7-y/2 - 2x/7- y/2)

After cancellation, we get (-2y/2)

HOPE THIS HELPS !!!

If you have more doubts inbox me.....