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Algebra Help for a Derivative

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!

Re: Algebra Help for a Derivative

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

Re: Algebra Help for a Derivative

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.

Re: Algebra Help for a Derivative

Multiply numerator and denominator by . You get in the numerator and in the denominator. The and the cancel each other out.

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Re: Algebra Help for a Derivative

Re: Algebra Help for a Derivative

Looks good with a quick glance

Re: Algebra Help for a Derivative

Quote:

Originally Posted by

**IdentityProblem** 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!

Why don't you use the logarithm laws to make life easier on yourself?

These functions are MUCH easier to differentiate...