I have been having a terrible time in my current calculus class. This is entirely because I am a bad student and don’t put the time into it that I should. I also procrastinate a lot. So I accept that.
Anyways, I’ve been doing some derivative homework and it really isn’t very hard. The issue is that when I check the answers, it’s always simplified into a form that I can’t understand how it got there.

Let me show an example.
So here is the problem and the correct simplified answer.

Ok great.

Except when I do my work (in this case I can replicate it with Wolfram Alpha’s Step-by-step solution because it shows it the same way I learned to solve it) it ends with an answer that is not even close to what the original and final answer is.

Except you have to use the chain rule too. But Wolfram just shows it in like a million steps when really they can be consolidated.

Thank you for proving me right. I knew I was an idiot… lol I don’t know what the hell I did when I was simplifying but looking at it now, it’s so obvious.
I was having a bad math day yesterday because I tried to get a weeks worth of stuff done in a few hours. Not a good idea.