# Math Help - derivative of algebraic function

1. ## derivative of algebraic function

I need to find the derivative of
f(x) = X^4(1-(2/x+1))

and I am completely lost.

2. Originally Posted by JDG1317
I need to find the derivative of
f(x) = X^4(1-(2/x+1))

and I am completely lost.
multiply out first.

$f(x) = x^4 - \frac {2x^4}{x + 1}$

now use the power rule on the first part and the quotient rule on the second