\[ -4 \left (a+x^2\right ) y(x)^2+b+2 y(x) y''(x)-y'(x)^2-3 y(x)^4-8 x y(x)^3=0 \] ✗ Mathematica : cpu = 1.44979 (sec), leaf count = 0 , could not solve
DSolve[b - 4*(a + x^2)*y[x]^2 - 8*x*y[x]^3 - 3*y[x]^4 - Derivative[1][y][x]^2 + 2*y[x]*Derivative[2][y][x] == 0, y[x], x]
✗ Maple : cpu = 0. (sec), leaf count = 0 , could not solve
dsolve(2*diff(diff(y(x),x),x)*y(x)-diff(y(x),x)^2+b-4*(x^2+a)*y(x)^2-8*x*y(x)^3-3*y(x)^4=0,y(x))