Solve the separable differential equation for u\displaystyle {u}
dudt=e5u+2t.\displaystyle {\frac{{{d}{u}}}{{{\left.{d}{t}\right.}}}}={e}^{{{5}{u}+{2}{t}}}.
Use the following initial condition: u(0)=4.\displaystyle {u}{\left({0}\right)}={4}.
u=\displaystyle {u}=   .