Integral 2(3t + 5) dt

[tex] \int\limits{2(3t+5)} \, dt\\ = \int\limits{6t+10} \, dt\\ = \frac{6}{1+1}t^{1+1}+ \frac{10}{1}t^1+C\\ \bold{=3t^2+10t+C} [/tex]