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rnotchick
 2 years ago
Find any critical numbers of the function f(x)=x^2(x^2−64).
rnotchick
 2 years ago
Find any critical numbers of the function f(x)=x^2(x^2−64).

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rnotchick
 2 years ago
Best ResponseYou've already chosen the best response.0Dont you have to set the derivative equal to 0?

rnotchick
 2 years ago
Best ResponseYou've already chosen the best response.0I am confused on what the derivative is of this

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.0You know product rule you have a function times another function. You have x^2 times (x^264)

rnotchick
 2 years ago
Best ResponseYou've already chosen the best response.0okay thats what i thought

rnotchick
 2 years ago
Best ResponseYou've already chosen the best response.0Then the two numbers that make that 0 are 0 and 8 i thought

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.0You need to find [x^2(x^264)]'

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.0You need to use the product rule.... Or! You could distribute x^2 first then just use power rule for both terms.

rnotchick
 2 years ago
Best ResponseYou've already chosen the best response.0Okay after I have the derivative of that, what is the next step

myininaya
 2 years ago
Best ResponseYou've already chosen the best response.0Right! :) Now set that equal to 0 and solve for x.
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