(adsbygoogle = window.adsbygoogle || []).push({}); simple SIMPLE local extremia question

1. The problem statement, all variables and given/known data

Find the absolute maximum and absolute minimum values of f(x) = 3x^4 - 8x ^3 + 12x^2 -48x +25, where 0 <= x <= 3.

2. Relevant equations

N/a

3. The attempt at a solution

f'(x) = 12x^3 - 24x^2 + 24x -48

= 12 (x^3 - 2x^2 + 2x -4)

= 12 (x-2) (X^2 +2)

I know how to do the rest, but just wondering before I go on... What should i do with that one factor...do I omit the (x^2 +2)?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Differentiation Problem?

**Physics Forums | Science Articles, Homework Help, Discussion**