(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

f(x) = x^3 +ax^2 +5x +2 and has two stationary points, one of which is x = 2. a) Find the other stationary point.

b) classify the stationary points using the second derivative test

3. The attempt at a solution

f '(x) = 2ax + 3x^2 +5

f ''(x) = 2a + 6x

0 = (2)^3 + a(2^2) +5(2) +2

0 = 8 + 4a + 10 +2

0 = 20 + 4a

-4a = 20, a = -5

What am I supposed to do to get a stationary point?

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# Homework Help: Finding Stationary Points

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