Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

The function f(x)=x^3-5x^2-2x=24 is positive for what parts of its domain?

I got my questions answered at in under 10 minutes. Go to now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly


Get your free account and access expert answers to this and thousands of other questions

Well in this situation the best thing to do would be to simplify it.. into factors. then you have ranges of test cases to test whether a number is positive in that range
can you factor it?
yep! thanks!

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

is it \[ f(x)=x^3-5x^2-2x+24\]
did you factor? once you have the three zeros, because this is a third degree polynomial with positive leading coefficient you know it will be negative, then positive, then negative, then positive
but that doesnt work right?
hmm i can factor this one out give me a second
I think what you meant to do was \[(x+2)(x-3)(x-4)\]
This gives you the ranges of \[(-\infty, -2) : (-2,3) : (3,4) :( 4,\infty)\]
Then you can just plug a number from each of those ranges in between and just look at the sign.
That'll tell you if it's in the positive range or not
okay thanks!

Not the answer you are looking for?

Search for more explanations.

Ask your own question