# differentiate

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• January 16th 2007, 12:15 PM
alison
differentiate
Can anyone help me with the question i have attached thanks
Alison
• January 16th 2007, 12:32 PM
galactus
What are you having trouble with?. A polynomial is one of the easiest functions to differentiate.
• January 16th 2007, 01:44 PM
topsquark
I presume you have learned the power rule?
$f(x) = ax^n$ means that $f'(x) = nax^{n-1}$.

If not then let me know and I'll walk you through this the long way.

$f(x) = 8x^3 + 3x^2 + 5$

$f'(x) = 8(3x^2) + 3(2x^1)$

$f'(x) = 24x^2 + 6x$

-Dan