1. ## Antidifferentiation methods

Yep.

2. Hello,

For the first one, can't you write this : $\frac{2x+7}{x}=2+\frac 7x$ ? Is this what you mean in "not supposed to divide" ?

3. Ohey you're right. That's simple enough...you do divide, but it turns into a question with log e x as the answer because you end up with 7/x, and the x has no power.

4. Hi
for the second problem
integration of (x^2+x^4/x)dx
=integration of (x^2/x+x^4/x)dx
=integration of (x+x^3)dx