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April 19, 2015

April 19, 2015

Posted by **B <3** on Sunday, September 21, 2008 at 6:50pm.

F(x) = x^3 4x^2 + 3 / x

The sign / means divided by (OVER) this problem looks like a big fraction. I am so lost though because I do not know why I keep getting 3x 4. Can someone please show me how to do this one?!

- Calculus (Derivatives) -
**Reiny**, Sunday, September 21, 2008 at 7:30pmYou mean:

F(x) = (x^3 4x^2 + 3) / x ?

if so, then first divide each term by x

F(x) = x^2 - 4x + 3/x

F'(x) = 2x - 4 - 3/x^2

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