Rationalizing a Denominator using a Conjugate

Sick of ads? Sign up for MathVids Premium

Taught by muchomath

Currently 4.0/5 Stars.

7012 views | 1 rating

View Similar Videos

Meets NCTM Standards:

1a
1b
1c
2b

Lesson Description:

Learn to rationalize the denominator of a fraction with a radical in it by using a conjugate.

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.

Questions answered by this video:

How do you rationalize a denominator?
What does it mean to rationalize the denominator of a fraction?
How do you rationalize a denominator using a conjugate?
How do you rationalize the denominator of sqrt(2)/(4 + sqrt(10))?
What is the conjugate of 4 + sqrt(10)?

Staff Review
- Currently 4.0/5 Stars.
This lesson shows you how to find the conjugate of a radical expression and then use the conjugate to rationalize the denominator of a fraction involving radicals. Each step is explained and written out.

How staff ratings work