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April 19, 2014

Homework Help: derivative

Posted by Steff on Saturday, June 11, 2011 at 11:31am.

29) Find the derivative of the function.

F(X)=2x^2(3-4x)^2

This is what I have so far. I am usually pretty good at simplifying but I am missing something here.

f'(x)=2x^2(4)(3-4x)^3(-4) + (3-4x)^4(4x)

Here is where I go wrong. (Answer from book)
=4x(3-4x)^3(-12+3)

Thanks for your help.

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