\[ y'(x)=\left (y(x)-e^x\right )^2+e^x \] ✓ Mathematica : cpu = 0.18281 (sec), leaf count = 17
\[\left \{\left \{y(x)\to e^x+\frac {1}{-x+c_1}\right \}\right \}\] ✓ Maple : cpu = 0.142 (sec), leaf count = 14
\[y \relax (x ) = {\mathrm e}^{x}+\frac {1}{-x +c_{1}}\]