Course: Intermediate Algebra
Topic: Factoring
Subtopic: Polynomial Equations


A polynomial equation (e.g., x^3-2x^2-3x=0) can be solved by factoring and using the zero-product rule (e.g., x(x+1)(x-3)=0 gives x=0,-1,3). Knowing how to accurately factor down completely is key! Watch for GCFs and special factoring forms.


By the end of this topic you should know and be prepared to be tested on:


Terms you should be able to define: quadratic equation, polynomial equation, zero-product rule, x-intercept point, x-intercept value, zero of a function

Supplemental Resources

Read my Lecture - Applications of Factoring Polynomials for motivation.

It is recommended that you be able to use a calculator (handheld or software) to solve a polynomial equation graphically by electronically finding its x-intercept values. If you have a handheld graphing calculator then these sites may help: