1. ## Finding Stationary point(s)

Given: Q(x) = 4x^2 + 20x + 25 / e^x

a) Find the stationary point(s) of Q(x) and give the functional value of the point(s).
b) For each stationery point, indicate whether it is a local minimum or local
maximum and explain why.

I know how to do this problem and find the points, but i don't know how to deal with e^x

2. First of all, is this

$\displaystyle \displaystyle{Q(x) = 4x^2 + 20x + \frac{25}{e^x}}$

or

$\displaystyle \displaystyle{Q(x) = \frac{4x^2 + 20x + 25}{e^x}}$?

3. The second one sorry

4. If $\displaystyle f(x) = \frac{(2 x+5)^2}{e^x}}$, then
$\displaystyle f'(x) = -\frac{(2x+1)(2x +5)}{e^x}}$.
For the stationary points, we must have:
$\displaystyle (2x+1)(2x+5) = 0 \Rightarrow x = -\frac{1}{2}, -\frac{5}{2}.$