HP PRIME SOLVE!

[qwertyuiop]

Hy guys,I'm a new on this Forum.

If i try to solve the equation: (1.77/((1+((1.77*X)/((1-X)*1.32)))^2)-(1.32/((1+((1.32*(1-X))/(X*1.77)))^2)=LN(32.78/19.42) , The solve app give as a result "Costant or Bad Argument).

It's a simply equation in one variable. Help me and sorry for my bad english!

[jebem]

This?
I tried in Home mode, Radians, then open the Solve app.
I have used the software calculator in Windows, as I do not have the Prime with me at the moment.
it seems to be working.