Question

Given y^3 - 3x^2 - 9x at [-2, 5]
Find the following extrema:

(5, 5)
(-1, 5)
(-2, -2)
(3, -27)

Answer 1

@Callisto Please help. :)

Answer 2

need clarity on the problem, like f(x) =..... or y =....., Your given y^3 - 3x^2 -9x at [-2,5] is meaningless to me.

Answer 3

because when replace [-2,5] that expression is 131, but I don't know what the number stands for.

Answer 4

@Loser66 It's \[f(x)=y ^{3}-3x ^{2}-9x\]