Evaluate the square root of a perfect square number multiplied

The video tutorial explains how to take the square root of a large number, specifically 400, while addressing the importance of handling negative numbers. It covers the process of prime factorization and demonstrates how to break down the square root using multiplication of square numbers. The tutorial concludes with the final result of the calculation, emphasizing the steps involved in simplifying the square root of a large number.

How can you rewrite 400 using square numbers?

What is the result of multiplying -2 and 10?