\[ y'(x)=\frac {\frac {3 x^2}{2}+x^2 \sin (x)-2 x^2 \cos (x)+\frac {1}{2} x^2 \cos (2 x)-2 x y(x)+y(x)^2+2 x y(x) \cos (x)+x-x \cos (x)}{x} \] ✓ Mathematica : cpu = 0.0573107 (sec), leaf count = 21
\[\left \{\left \{y(x)\to \frac {1}{c_1-\log (x)}+x+x (-\cos (x))\right \}\right \}\]
✓ Maple : cpu = 0.164 (sec), leaf count = 20
\[ \left \{ y \left ( x \right ) =- \left ( -1+\cos \left ( x \right ) \right ) x+ \left ( {\it \_C1}-\ln \left ( x \right ) \right ) ^{-1} \right \} \]