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Question: dsolve gives solution with no y(x) in it. What does it mean?

Question:dsolve gives solution with no y(x) in it. What does it mean?

nm 8552 Maple 2020
ode dsolve differential-equations
July 10 2020
4

I was trying to compare my solution with Maple on this ode, when I noticed Maple gives solution with no y(x)= in it. 

restart;
ode:=(y(x)-x*diff(y(x),x))/(y(x)^2+diff(y(x),x))=(y(x)-x*diff(y(x),x))/(1+x^2*diff(y(x),x));
sol:=dsolve(ode)

When there is more than one solution, Maple write y(x) on each. For an example

dsolve(diff(y(x),x)^2=x)

How to explain this output?

Maple 2020.1
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