How to apply simplifying radicals to large digits

The video tutorial explains how to simplify radicals by identifying square numbers and rewriting the number under the radical as a product of these numbers. The process involves dividing the number to find factors that are perfect squares, simplifying the expression, and multiplying numbers outside the radical. The tutorial emphasizes the importance of starting with the largest square number and provides a step-by-step approach to achieve the final simplified form.

What is the square root of 81?

• 7

• 8

• 10

• 9

Which number, when divided into 245, results in an integer?

• 64

• 225

• 49

• 81

What is the square root of 49?

• 5

• 6

• 7

• 8

How can you express 245 as a product of numbers including a square number?

• 7 * 36 * 5

• 9 * 49 * 5

• 8 * 25 * 5

• 6 * 49 * 5

What is the final simplified expression for 245 in terms of square roots?

• 45 times sqrt 5

• 63 times sqrt 5

• 72 times sqrt 5

• 81 times sqrt 5