Curious. Watched a GioFilms video and want to know the answer.

int x(x^ 2 +5)^ vee2 dx-3 int x(x^ 2 +5)^ - vee2 dx integrate (x[(x ^ 2 + 5) - 3])/(sqrt(x ^ 2 + 5)) dx

Watch the video that the category is and then skip to 5:50 and you will see the question I want to answer