(wx-y)^2
(wx-y)^2 can be expanded using the distributive property as follows:
(wx-y)^2 = (wx-y)(wx-y)
Using the FOIL method, we can expand the expression:
(wx-y)(wx-y) = (wx)^2 - wxy - wxy + y^2
This simplifies to:
(wx-y)^2 = w^2x^2 - 2wxy + y^2