### Home > A2C > Chapter 4 > Lesson 4.2.1 > Problem4-67

4-67.
1. Simplify each expression. Remember you can simplify radicals by removing perfect square factors (e.g. ). Homework Help ✎

Remove any perfect square factors.

$\sqrt{4 \cdot 6}$

$2\sqrt{6}$

See part (a).

Remember that radicals can be treated like variables.

$1 \sqrt{3} + 1 \sqrt{3}$

$2\sqrt{3}$

See parts (a) and (c).