Learn the basics of rationalizing the denominator

The video tutorial explains how to simplify a radical expression by rationalizing the denominator. The process involves multiplying the numerator and denominator by the radical in the denominator to eliminate it. The tutorial walks through the steps of multiplying radicals, simplifying the expression, and arriving at the final answer. The goal is to produce an equivalent fraction with a non-radical denominator.

How do you simplify the expression sqrt(3) * 3?

What is the final answer after rationalizing the expression mentioned?