Question

derivative of (x)/(x^2 -5)

pls help me finish

= (1 * (x^2 -5)- x *2x))/(x^2-5)^2

Answer 1

how do i simplify further

Answer 2

help anyone?

Answer 3

the only thing I see is to sum the x^2 with the -2x^2, but the fraction I'd leave it like that, there is a way of dividing polynomials but I don't remember it now, and it doesn't always gives a perfect answer without rest.

Answer 4

according to wolfram the final ans is -(x^2 + 5)/(x^2-5)^2

where did the -2x^2 go?

Answer 5

Well, you need to sum with the x^2 as I said before, x^2-2x^2=-x^2

Answer 6

how so?

Answer 7

h-2h=-h, you have 1 x^2, and you take two x^2 out of it, then you get -1 x^2, it is simple subtraction