Can anyone help me with the question i have attached thanks

Alison

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- Jan 16th 2007, 12:15 PMalisondifferentiate
Can anyone help me with the question i have attached thanks

Alison - Jan 16th 2007, 12:32 PMgalactus
What are you having trouble with?. A polynomial is one of the easiest functions to differentiate.

- Jan 16th 2007, 01:44 PMtopsquark
I presume you have learned the power rule?

$\displaystyle f(x) = ax^n$ means that $\displaystyle f'(x) = nax^{n-1}$.

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

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

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

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

-Dan