Trying to Factorise/Simplify an Algebraic Fraction

Hello there sorry If I've posted this in the wrong forum but I've been having trouble with this one question in a textbook and I'd be very greatful if someone could help me through it :) The question is -

Simplify:

Quote:

_____(4x^2 - y^2) __**X** (x^2 + 2xy)__

(2x^2 + 3xy - 2y^2) **X** (xy - 2x^2)

I Hope i've made sense it ain't the prettiest diagram but i think you can get the jist of it and just incase the X represents multiply and the ^ refer to powers. I think the base of my difficulty is when im trying to factorise and apply 2x^2 + 3xy - 2y^2 as it isnt your traditional 'ax^2 + bx + c' quadratic.

So yeah I think thats about it, thanks for reading and I hope you can help