### Home > CCA2 > Chapter 2 > Lesson 2.1.2 > Problem 2-27

2-27.

Simplify each expression without using a calculator. Remember that to simplify expressions with radicals, you can remove perfect square factors such as in this example:

What square number is a factor of 50?

Here is a list of square numbers to get you started:

Refer to part (a).

To simplify completely you need to find the largest square number that is a factor of 72.

Refer to part (a).