It seems like they're teaching kids this theorem younger and younger, sometimes before students even learn how to solve an equation. So in this video I take this thing from the very basics. Word to the wise: Pythagorean Theorem only works on right triangles!

Simplifying Roots & Radicals

This video starts things off on the right foot with square roots, demonstrating the easiest and hardest-to-mess-up method for simplifying radicals, which is where we try and get the smallest number under the root as possible.

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If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)