\[ f(x) y'(x)+g(x) j(y(x))+h(y(x)) y'(x)^2+y''(x)=0 \] ✗ Mathematica : cpu = 0.385942 (sec), leaf count = 0 , could not solve
DSolve[g[x]*j[y[x]] + f[x]*Derivative[1][y][x] + h[y[x]]*Derivative[1][y][x]^2 + Derivative[2][y][x] == 0, y[x], x]
✗ Maple : cpu = 0. (sec), leaf count = 0 , could not solve
dsolve((1-D(j)(y(x)))/j(y(x))*diff(y(x),x)^2+f(x)*diff(y(x),x)+diff(diff(y(x),x),x)+g(x)*j(y(x))=0,y(x))