Like what you saw?
Start your free trial and get immediate access to:
Watch 1-minute preview of this video

or

Get immediate access to:
Your video will begin after this quick intro to Brightstorm.

Rationalizing a Denominator with a Binomial - Problem 6 312 views

In rationalizing the denominator, our goal is to get no roots in the bottom of a fraction. In order to do this, we usually multiply the top and bottom both by the bottom (this is a clever form of one) so the radical product in the denominator will become a rational number. In these examples, the denominators are sums and differences of radicals, so we multiply top and bottom by the conjugate of the bottom. If done correctly, there will be no more roots in the denominator.

Transcript Coming Soon!

Stuck on a Math Problem?

Ask Genie for a step-by-step solution