Quadratic Equations and Functions

1
Quadratic Equations and Functions

• Chapter 5
• Part 2

2
Warm-UpSolve in your notebook

• Simplify without using decimals.

3
ReviewSquare Roots and Radicals

• Todays GoalsBy the end of class today, YOU
  should be able to

1. Use properties of square roots to simplify
radical expressions
4
A radical expression is in simplest form when all
the following are true

• The radicand has no perfect-square factors other
  than 1.
• The radicand has no fractions.
• The denominator of a fraction has no radical.

5
Multiplication Property of Square Roots

• Ex

6
Ex.1 Simplify each radical by finding a perfect
square.
You Try
7
Division Property of Square Roots

• Note A radicand in the denominator of a radical
  expression may not be a perfect square.
• Rule! To simplify, you may need to rationalize
  the denominator!

8
Ex.2 Simplifying radicals in the denominator.
9
You Try