Simplifying Radicals Lesson

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In this section, we learn about Simplifying Radicals, Multiplying Radicals, and Dividing Radicals. We begin by learning about the product rule for radicals.
The product of two square roots is the square root of the product. This means we can take something like the square root of 20 and make it into the square
root of 4 • the square root of 5. Since the square root of 4 is the same as 2, we just replace it with a 2. This gives us 2 • the square root of 5.
This is the basic idea behind simplifying. We always prefer a rational number such as 2 to something such as the square root of 4. So when we look at
something like the square root of 8, we can break it down to the square root of 4 • the square root of 2. We replace the square root of 4 with 2
and end up with 2 • the square root of 2. The quotient rule for radicals is very similar; the square root of a quotient is the quotient of the
square roots. The difference here is we have to guard against division by zero, since it is undefined.

Simplifying Radicals Resources:

Videos:

Khan Academy - Video
Math Why U - Video
Virtual Nerd - Video
Text Lessons:

Math WareHouse - Text Lesson
Cool Math - Text Lesson
Khan Academy - Text Lesson
Worksheets:

Khan Academy - Practice
Khan Academy - Practice
Khan Academy - Practice
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