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### How to Use the Roots of a Polynomial to Find Its Factors

The *factor theorem* states that you can go back and forth between the roots of a polynomial and the factors of a polynomial. In other words, if you know one, you know the other. At times, your teacher or [more…]

### How to Graph Polynomials When the Roots Are Imaginary Numbers — An Overview

In pre-calculus and in calculus, certain polynomial functions have non-real roots in addition to real roots (and some of the more complicated functions have [more…]

### Understanding the Binomial Theorem

A *binomial* is a polynomial with exactly two terms. Multiplying out a binomial raised to a power is called *binomial expansion*. Your pre-calculus teacher may ask you to use the binomial theorem to find the [more…]