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


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

Rationalizing a Denominator with a Binomial - Problem 7 284 views

As with any fractions, if we wish to add or subtract, we'll need to have common denominators. With radical binomial denominators, like here, we'll multiply each fraction top and bottom by the other fraction's denominator. In this example, the radicals all become real numbers in the bottom, so we only need to simplify the numerator. You can use a calculator to check your solution.

Transcript Coming Soon!

Stuck on a Math Problem?

Ask Genie for a step-by-step solution