\[ (3 x+1) y'(x)^2-3 (y(x)+2) y'(x)+9=0 \] ✓ Mathematica : cpu = 0.0042806 (sec), leaf count = 28
\[\left \{\left \{y(x)\to c_1 x+\frac {9+c_1{}^2-6 c_1}{3 c_1}\right \}\right \}\] ✓ Maple : cpu = 0.037 (sec), leaf count = 51
\[y \relax (x ) = -2-2 \sqrt {3 x +1}\]