Online Test Banks
Score higher
See Online Test Banks
Learning anything is easy
Browse Online Courses
Mobile Apps
Learning on the go
Explore Mobile Apps
Dummies Store
Shop for books and more
Start Shopping

What Is the Binomial Theorem?

Part of the Algebra II Workbook For Dummies Cheat Sheet

A binomial is a mathematical expression that has two terms. In algebra, people frequently raise binomials to powers to complete computations. The Binomial Theorem says that if a and b are real numbers and n is a positive integer, then


You can see the rule here, in the second line, in terms of the coefficients that are created using combinations. The powers on a start with n and decrease until the power is zero in the last term. That’s why you don’t see an a in the last term — it’s really a zero. The powers on b increase from b0 until the last term, where it’s bn. Notice that the power of b matches k in the combination.

blog comments powered by Disqus

Inside Sweepstakes

Win an iPad Mini. Enter to win now!