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.

Why can't we take the square root of a negative number?

• Because it results in a complex number

• Because it results in zero

• Because it results in a positive number

• Because it results in an undefined number

What is the first step in prime factorizing a number like 400?

• Divide it by 1

• Find two numbers that multiply to give 400

• Subtract 100 from it

• Multiply it by 2

Which of the following is a correct way to express 400 using square numbers?

• 400 = 10 * 40

• 400 = 20 * 20

• 400 = 4 * 100

• 400 = 2 * 200

What is the square root of 4?

• 2

• 3

• 4

• 1

What is the final result of taking the square root of 400?

• 10

• -10

• 20

• -20