Why does this integration
return 700 as integration constant? If we make a slight modification
Mathematica provides desired result.
It turns out that the aforementioned modification gives the wrong answer, instead of $15x-15x^2+2x^3-\log(x-5)$ it gives $15x-15x^2+2x^3-\log(5-x)$ even in Rubi. Try these
I think we should add 'bug' tag in this integration problem.