Question
Asked Oct 16, 2019
8 views

Let f (x) = 8x4 − 16x2 + 39

Find the value(s) of c at which f ' changes from positive to negative and list them in increasing order.
Enter DNE in any unused answer blanks.

c =
c =
c =

Find the values of c at which f ' changes from negative to positive at the following numbers (list in increasing order).

c =
c =
c =

check_circle

Expert Answer

Step 1

Given:

help_outline

Image Transcriptionclose

f(x) = 8x -16x2 +39,

fullscreen
Step 2

Formula used:

help_outline

Image Transcriptionclose

(x*)= т dx

fullscreen
Step 3

Differentiate with respect ...

help_outline

Image Transcriptionclose

f(x) 8x-16x2 +39 d f()(816 +39) f(x)=8 (16)(39) f (x)=8(4x)-(16x 2x) f(x)(32x)-(32x) (8x -16x2 +39) dx d d dx dx f'(x) 32x3-32x

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in