Polynomials Resources

Best of the Web. Picked by our PhDs

Websites

Real Zeros of Polynomial Functions

Here's a no-nonsense explanation of the roots of polynomial functions. We happen to prefer our nonsense-filled explanation, but we'll take all the help available.

Math Is Fun—Fundamental Theorem of Algebra

Learn the fun-fun-fundamentals of the Fundamental Theorem of Algebra with Math Is Fun. Fun.

Purplemath—The Rational Roots Test

What's scarier than a horde of bees? Not understanding the Rational Root Theorem when test day rolls around. Rub yourself with figurative bee repellant by reading up on the RRT.

Videos

PatrickJMT—Synthetic Division Example

Synthetic division can seem artificial if you don't know what's going on. Make some sense of it with Patrick JMT.

PatrickJMT—Long Division of Polynomials

More division help from Patrick, this time on long division. Teach those slant asymptotes a thing or two.

My Secret Math Tutor—Using Descartes' Rule of Signs

Descartes, why is your sign so confusing? Go back to graphic design school.

Upper and Lower Bounds Theorem

Yer out of bounds, zero. Get out of here.

Games and Tools

Factoring Polynomials Calculator

Finds all of the roots of a polynomial, real and complex. We suggest just using it to check your answers. Practice makes perfect, and being perfect at using this calculator won't help that much on the test.

Coolmath: Graphing Polynomials—Multiplicity

For some reason, this page doesn't mention Michael Keaton a single time. Weird.

Wolfram—Rational Function Grapher

A way to graph rational functions with a computer? No, a way to check your rational function graphs. C'mon now, you know better.