What is the [tex]\int(u)[/tex]-1 where u is a fonction of x , forming a quadratic equation. As in: [tex]\int(u)[/tex]-1 where u = x2+2ax+a2 for example. Is there a basic property for this... or do I have to play around with the fonction u , in order to integrate? ---- I know that [tex]\int(x)[/tex] = ln(x) , but this can't be applied here, right? cuz ln(u)' = u-1(u'). Maybe would I need to find a way to eliminate the u' as a result of the integral. OR Do I need to change u to = ( x+a)(x+a) and do the integer of that ^-1 , so: [tex]\int((x+a)^-1)((x+a)^-1)[/tex] ---- Does anyone know an integral property for this kind of problem, or know of a way to set me on the right track here? Thank you.