AI Tutor
Back to 5.5 Zeros of Polynomial Functions

5.5 Exercise 25

Avg difficulty 2.5

Use Descartes’ Rule of Signs to determine the maximum possible numbers of positive and negative real zeros for f(x)=2 x 4 −10 x 3 +11 x 2 −15x+12. f \left(x\right) = 2 x^{4} - 10 x^{3} + 11 x^{2} - 15 x + 12. Use a graph to verify the numbers of positive and negative real zeros for the function.

OpenStax Algebra and Trigonometry 2e, 5.5 Zeros of Polynomial Functions, exercise 25

AI Tutor

Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.