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ashley123456789 · Apr 3, 2007, 11:19 AM

1. f(x)=x^1/3+1

2.f(x)=(x-1)^2(x+2)

For both i need to: (show work)

-find first derivative
-find second derivative

worthbeads · Apr 3, 2007, 12:14 PM

Originally Posted by ashley123456789

1. f(x)=x^1/3+1

2.f(x)=(x-1)^2(x+2)

For both i need to: (show work)

-find first derivative
-find second derivative

So why aren't you?

galactus · Apr 4, 2007, 04:34 AM

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

You don't need the product rule or chain rule here. Just expand out and differentiate.

$f(x)=(x-1)^{2}(x+2)=x^{3}-3x+2$

Now, it's easy.