........这个 答案是:y[x]=(3*x+C1)/x^2我用Mathematica 算的DSolve[y'[x] == (3 - 2 x y[x])/x^2, y[x], x]结果是:{{y[x] -> 3/x + C[1]/x^2}} MATLAB 代码是:dsolve('Dy=(3-2*x*y)/x^2','x')答案:ans = (3*x+C1)/x^2
