Rationalizing the Denominator

After reviewing the homework from last night, we looked at another situation involving square roots, and discovered the square root of a number times itself ends up being the number. (The square root of a times the square root of a is the square root of a squared which is a.) This allowed us to learn about rationalizing the denominator of an expression, which means rewriting an expression in such a way that there is no radical sign in the denominator (which is the preference of all mathematicians).

Tonight's homework: Complete the worksheet titled 9.2 (both sides)