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