What do you mean?. You want to solve for x?. It's already factored.
Do you want to set to 0 and solve for x?. If so, about the only value x can have is 0.
I am in Increasing and Decreasing Functions.
I'm just wondering how to factor this. The original question was y=1/x^2+1, and taking the derrivative i was left with y'=-2x/(x^2+1)^2.
how do i factor the derrivative to get the x's?