For x ∈ [−12, 11] the function f is defined by
f(x) = x3(x + 6)^6
On which two intervals is the function increasing (enter intervals in ascending order)?
Find the region in which the function is positive: to
Where does the function achieve its minimum?
when i derived it i got
3x^2(x+6)^6 + 6x^3(x+6)^5
then you set it equal to zero... how do i use the algebra part now?
I tried something like this:
(x+6)^5 [3x^2(x+6)+ 6x^3]
I got all the answers now but the last....
when does it reach it's minimum?