1. Solve Quadratic Equations by Finding Square Roots Chapter 1.5

2. 1.5 Vocabulary Square Root r is the square root of s if r 2 = s. Radical The symbol Radicand The ‘s’. Number inside the radical sign Rationalizing the denominator Eliminating radicals from the denominator Conjugates – ex: The product of conjugates is always a rational # Rational – can be written as a fraction Irrational – endless non repeating digits to right of the decimal

3. Properties of Square Roots

4. Ex. 1: Simplify each expression

6. Ex. 2: Rationalize the Denominator

7. Rationalize the Denominator

8. Ex. 3: Solve a Quadratic Equation

9. Ex. 4: Solve a Quadratic Equation