You can factor the derivative, like so:
Now you can see that the extrema will occur when
Can you figure out the rest from here?
Hi there. I got this function, and I must find the intervals where it grows and when it decreases.
Here it is:
I found its derivative:
From here I see that it will always grows when x>1. But, what happends before it gets to x=1? How must I think this problem?
Bye there, and thanks.