Hello, I am having problem with this topic itself. I do not seem to understand the concept so here is a problem.

1.) p(p+1)^5 dp

2.) t/(t^2+2) dt

how do I go to solving these? I have tried many times and it just does not end up at the right spot, the definition in the book does not seem to explain well.

I make the brackets() = u and then find the derivitive of that and make it DU? but what do i do with the left over p and t? does that make sense?

Thanks