I'm a teacher, and own an HP Prime, but many of my students have Casio CG50's.

On the Prime, graphing something like x^3 + 3x + 2y^3 + 3y^2 = 0 is easy, but HOW do you graph the same on the CG50?

The graph app lets you plot for x=, y=, r= (circles), or 'Param' (Xt and Y, I don't really understand).
There is also a conic graphs app, which doesnt include any x^3 or y^3, but might otherwise work (it has x^2 and y^2 in it).

Sorry, but, I'm not sure you can like you would on a HP Prime; however, it should work if re-arranged for x= or y=, and the conic graphs app can be used for simpler equations.

Thanks. That's what I thought. Just amazed that a calculator with the power of the CG50 can't draw a relatively straightforward graph. Glad I brought the Prime.

Yeah, you might be able to find an addin that does it, but the Prime is probably the way to go.