Asked • 01/25/22

Find the zeros of a function, algebraically

Please help find the zeros of the function, algebraically. The functions is f(x) = 4x^3 + 8x + 3

1 Expert Answer

By:

Ramon P. answered • 01/25/22

Tutor
5.0 (89)

Masters of Mathematics with over 10 years teaching experience

See tutors like this
See tutors like this

The question was asked by a tutoring student. I could not solve it. As a result, I got a 3 star rating. I want to see if anybody can solve it so that I can understand the 3 star rating. Otherwise, that 3 star rating makes no sense.

Upvote • 0 Downvote
More
Report

Marlene L.

Well, you could use the Rational Roots Theorem, Descartes' Rule of Signs, a graphics calculator for checking the results, and Synthetic Division. According to Descartes' Rule of Signs, there are NO POSITIVE Rational Roots and one NEGATIVE Root. The one zero is approximately - 0.353.
Report

01/27/22

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.