There is no "solution" for your equation. I very much doubt that your instructor or your textbook asked you to solve the equation. You only have one equation, and, counting the question mark, you have 4 variables.
Now it is possible to show the binomial expansion of your expression, presuming that the 2n + 1 part is an exponent (in which case you should have rendered the expression as (x - y)^(2n + 1) = ?). But that is not what you asked and I'm not going to do all of that work on a guess. Write back when you figure out what it is that you really want.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
