Surds, Rationalizing Denominators, and Applying Laws of Surds

The video tutorial explains surds, which are expressions containing irrational square roots. It covers two main laws of surds: multiplication and division, emphasizing that you can multiply or divide the values under the root. The tutorial also warns against common mistakes when adding surds. It demonstrates how to express surds in the form a√b by identifying square factors. Finally, it explains rationalizing the denominator by multiplying by the conjugate to eliminate irrational roots.

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