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April 20, 2014

April 20, 2014

Posted by **Herosugar** on Wednesday, September 26, 2012 at 12:19am.

and solve the equation F(X)=0

i got to the second derivative but what do we do next to be able to get one of these answers..

F(x) = 5x3+60x2−36x−41

1. derivative of F(x)

with respect to x = 15x2+120x−36

2. derivative of F(x)

with respect to x = 30x+120

a. 4

b. 5

c. 0

d. 41

e. 36

- CALCULUS HELP -
**Reiny**, Wednesday, September 26, 2012 at 12:33amYour derivatives are correct

As to solving f(x) = 0

5x^3+60x^2-36x-41 = 0 is a tough one, since it does not factor

I used an apps to find

x = 1.11169

x = -12.5227

x = -.589024

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