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"Rubbish" integration outputs
Hi, I always find me in troubles when integrating ODE that I think Mathematica should be able to do. It's all right for the very simplest, but consider for instance the following: \!\(DSolve[\((x + 2 x\^2 + x\^3)\) \(y'\)[x] + \(x\^2\) \(y''\)[x] == A, y, x]\) 'A' a constant. Well, the problem is that I don't even the clue that Mathematica *cannot* integrate it, there is some output with gibberish, like K$14646 and the like (those are intermediary variables I guess). So what is wrong? Is Mathematica expected to return such outputs? Cheers.