If x ≠ 0 and (y^2 − xy)/x=y-x, which of the following expressions is equal to its opposite? Choose the correct choice from the following answers.
A) x^2  B) x^2 – y^2  C) y^2  D) (y + x)^2  E) (x – y)^2
(y^2 − xy)/x=y-x   =&gt; y^2 − xy = xy -x^2   =&gt; x^2 - 2xy + y^2 = 0   =&gt; (x-y)^2 = 0   Answer (x – y)^2
<result>E</result>
If x ≠ 0 and (y^2 − xy)/x=y-x, which of the following expressions is equal to its opposite?