Learn how to simplify the product of square root of two numbers ex 4, -3root(12).root(7)

The video tutorial demonstrates how to simplify a radical expression involving multiplication. It begins by explaining the multiplication of radicals and the importance of simplifying them first. The instructor then shows how to break down radicals using perfect squares, focusing on the example of multiplying -3 times sqrt 12 times sqrt 7. The process involves rewriting 12 as 4 times 3, simplifying sqrt 4 to 2, and then multiplying the simplified terms to get the final result of -6 times sqrt 21.

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