EasyPolynomials

OpenStax, Algebra and Trigonometry 2e §5.3 Graphs of Polynomial Functions · Try It 3 · Algebra · Polynomials

Graphs of Polynomial Functions · Try It 3

Show that the function $f (x) = 7 x^{5} - 9 x^{4} - x^{2}$ has at least one real zero between $x = 1$ and $x = 2.$

~5 minWritten answer · check your work with Lemma

OpenStax, Algebra and Trigonometry 2e · §5.3 Graphs of Polynomial Functions · Try It 3

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.