Math Help - Derivative Function Problem

1. Derivative Function Problem

I have a problem and I need some help:-

"For this function, find the value(s) of x at which dy/dx=0

f(x)=3x^2 - 12x + 13

For this function, find dy^2/d^2x."

Any help would be greatly appreciated!!

2. Originally Posted by boothyuk123
I have a problem and I need some help:-

"For this function, find the value(s) of x at which dy/dx=0

f(x)=3x^2 - 12x + 13

For this function, find dy^2/d^2x."

Any help would be greatly appreciated!!
where, exactly, are you having a problem? are you saying that you cannot find f'(x) ?

3. Right!

I know that I am supposed to set the 1st derivative of that function equal to zero and solve for x but I am having trouble doing this!

Any ideas?

4. Use the formula

If $y =x^n \Rightarrow \frac{dy}{dx}= nx^{n-1}$

Does this help?