Simplifying long equations in HP Prime

[Aether]

I did an integration for electric field and the HP Prime gives a very long and convoluted answer. Since I am going to use it in an exam, ideally I would be able to make my calculator output something simple which is easier to be checked.


I tried everything from simplifying, setting the simplify to none, min and max, tinkering with the CAS function (calculus and polynomial functions) and I haven't found any which simplifies my equation.