I can't really read what you wrote. It looks like the problem is . Then, when you get to line 6, it appears that becomes . That is wrong. It should become
There's probably easier ways to solve this derivative by using logarithmic rules, but using the method that I took, do you see where I go wrong with the algebra?
It would greatly help to see what errors I making! I think the same errors pop up when doing problems like this. Thank you!
Yes! That's what puzzles me a lot. I don't have that part down in my head yet.
When dividing a complex fraction like that, I confuse the order of what group divides what.
Any advice on that? I took it that 1 divides (x^2 +1)^5 first.