Consider the function f(x)=(x^2)e^(14x)

Question

f(x) has two inflection values at x = C and x = D with C≤D
where C is
and D is
Finally for each of the following intervals, tell whether f(x) is concave up or concave down.
(−∞,C]:
[C,D]:
[D,∞)

Answer 1

f(x)=
x3
3−
x2
2−2x+7
f(x)=x33−x22−2x+7
.