Решенный интеграл вида ∫x^2•a^xdx

Solving an indefinite integral of the form ∫e^(αx)sinβxdx by integration by parts, where a takes the values 2,3,4,5...n
An example of solving integrals for a=2,4,5
∫x^2•a^xdx, ∫x^2•2^xdx, ∫x^2•4^xdx, ∫x^2•5^xdx

The solution is in PDF format